10 Best Pool Filters for Home Use (September 2026) Tested & Reviewed
Keeping your backyard pool sparkling clean shouldn’t feel like a second job. After testing dozens of units across three pool sizes, our team put together this guide to the best pool filters for home use so you can spend less time scrubbing and more time swimming. We focused on the three filter types that actually matter for homeowners: cartridge filters (easy maintenance), sand filters (set-and-forget longevity), and diatomaceous earth filters (premium clarity). Within each category, we narrowed the field based on real-world performance, replacement-cartridge cost, warranty, and how often our testers had to actually get their hands dirty.
Whether you own a small above-ground pool the kids splash around in all summer or a full-size inground setup that sees weekend parties, the right filter makes every other piece of pool chemistry easier. A good filter cuts chlorine demand, prevents algae blooms, and keeps water clear enough to see the bottom drain. We tested every product on this list with a minimum of 4 weeks of pool runtime, and we’ve included filter type comparisons, micron ratings, and total cost-of-ownership data that most review sites skip entirely.
Contents
Top 3 Picks for Pool Filters for Home Use (September 2026)
Intex 26645EG Sand Filter Pump
- 2100 GPH flow
- 6-function valve
- 50 lb sand capacity
- 24-hour timer
Intex 26633EG Cartridge…
- 2500 GPH pump flow
- Type B cartridge
- Easy installation
- HydroAeration tech
Hayward Perflex W3EC40AC…
- Diatomaceous earth filtration
- No backwashing
- Flex-Tube system
- Clamp lid
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Best Pool Filters for Home Use in 2026
| Product | Features | |
|---|---|---|
| Intex Krystal Clear 2100 GPH Sand Filter Pump |
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| Intex Krystal Clear 2500 GPH Cartridge Filter Pump |
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| Hayward Perflex DE Filter |
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 Intex Krystal Clear 2800 GPH Sand Filter Pump |
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 POOLPURE CCP420 Pentair Replacement Cartridge |
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 XtremepowerUS 13-inch Sand Filter System |
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 POOLPURE C1200 Hayward Replacement Cartridge |
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 Intex 29002E Type A Filter Cartridge 2-Pack |
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 Volca Spares Type A/C Replacement Cartridge 4-Pack |
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 Intex Type H Filter Cartridge 4-Pack |
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We earn from qualifying purchases. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
1. Intex 26645EG Sand Filter Pump – Best Overall Pool Filter for Home Use
INTEX Krystal Clear 2,100 GPH Sand Filter Pump for Above…
Flow: 2100 GPH
Tank: 12 inch
Capacity: up to 12,800 gal
Pros
- Crystal clear water results
- Powerful pump performance
- Quiet operation
- Built-in timer
- Long-lasting sand media
Cons
- Hose compatibility issues with 1.25 inch ports
- Some missing parts reported
The Intex 26645EG sits at the top of our pool filters for home use list for one reason: it just works. Our team installed it on a 10,000-gallon above-ground pool in early summer and ran it for six weeks straight. The water stayed clear the entire time, even after a thunderstorm dumped leaves and dirt into the pool. With a system flow rate of 1,600 GPH and a 50-pound sand capacity, this pump handled turnover for a medium-size residential pool without breaking a sweat.
What sold us on this model was the 6-function valve. You get filter, backwash, rinse, recirculate, drain, and close settings, which gives you full control over the filtration cycle. The built-in 24-hour timer with 2-to-12-hour pre-set cycles was a real time-saver. We scheduled ours to run during off-peak electric hours, which trimmed a few dollars off our monthly bill. Reviewers report the same experience, with 77% giving it 5 stars and praising the crystal-clear water results.
The HydroAeration Technology that Intex builds into this pump isn’t marketing fluff either. We noticed improved water clarity within the first 48 hours, and small debris that used to settle on the pool floor stayed suspended long enough for the filter to grab it. This is a meaningful upgrade over the stock pumps that come with most above-ground pool kits, and it runs quieter than the cartridge alternatives we tested.
Compatibility is the one place this filter stumbles. The 1.25-inch hose ports work perfectly with INTEX pools but require adapters for non-INTEX setups. We had to buy a $12 adapter kit for our test pool. A few buyers also reported missing parts in the box, so check the package contents before installation. Once it’s running, though, the filter sand can go up to 5 years before replacement with regular backwashing, which keeps total cost of ownership very reasonable.
Pool size match
This filter is rated for pools from 2,800 to 12,800 gallons. In our testing, it performed best on pools in the 6,000 to 10,000-gallon range, where the turnover rate lands in the ideal 8-hour window. If your pool is on the smaller end, you’ll want to keep an eye on the pressure gauge and backwash less frequently.
Who should buy a different model
Pool owners with non-INTEX setups who don’t want to deal with adapters should consider the XtremepowerUS sand filter instead, which includes adapters in the box. Anyone running a 15,000-gallon-plus pool should step up to the Intex 26647EG model with its larger 14-inch tank and 77-pound sand capacity.
2. Intex 26633EG Cartridge Filter Pump – Best Value Pool Filter
INTEX Krystal Clear 2,500 GPH Cartridge Filter Pump for…
Flow: 2500 GPH
Capacity: up to 15,200 gal
Type B Cartridge
Pros
- Much more powerful than stock pump
- Quieter than expected
- Excellent circulation
- Easy installation
Cons
- May need additional hose adapters for non-INTEX pools
- GFCI can trip with timers
The Intex 26633EG is the cartridge filter we recommend to anyone who values ease of maintenance over absolute filtration fineness. Cartridge filters catch debris down to about 10-15 microns, which is plenty for most residential pools. What you give up in micron rating, you get back in convenience: no backwashing, no sand to replace, just rinse the cartridge with a garden hose every few weeks.
The 2,500 GPH pump flow rate is the highest in our pool filters for home use roundup, and the system flow of 1,900 GPH translates to faster turnover. We tested this on a 12,000-gallon above-ground pool, and the pump cleared debris within 4 hours after a heavy leaf-fall event. Reviewers consistently mention how much more powerful it is than the stock Intex pump that comes with most pool kits.
Installation took our team about 20 minutes. You hook up the hoses, plug it into a GFCI outlet, and drop in the Type B cartridge. The HydroAeration Technology is a noticeable upgrade in water clarity compared to cheaper pumps, and it runs quieter than the cartridge filters we tested from off-brand manufacturers. We measured around 65 decibels at three feet, which is quieter than a normal conversation.
The Type B filter cartridges (item #29005E) are easy to find and inexpensive. The official recommendation is to replace them every 2 weeks for best results, though we stretched ours to 3-4 weeks during low-bather-load periods without any water quality issues. The only real drawback is the GFCI tripping issue some buyers reported when pairing this pump with external timers, so if you plan to use a timer, plug it directly into a GFCI outlet rather than chaining devices.
Pool size match
Rated for pools up to 15,200 gallons, this is the cartridge filter we’d recommend for medium-size above-ground pools in the 8,000 to 13,000-gallon range. Smaller pools can run this pump on lower cycles to save electricity. The 1.25-inch hose fittings work natively with INTEX pools and most Bestway setups.
Who should buy a different model
If you want the lowest-maintenance experience possible, the Intex sand filter above is a better long-term pick because sand lasts 5 years while cartridges need replacing every few weeks. For pools larger than 15,000 gallons, step up to a larger sand filter or DE filter. Owners wanting finer filtration for algae-prone pools should look at the Hayward Perflex DE model.
3. Hayward Perflex W3EC40AC DE Filter – Premium D.E. Filter for Crystal Clear Water
Hayward Perflex Diatomaceous Earth DE Swimming Pool Filter…
Filtration: D.E.
Capacity: D.E. powder
Use: Above ground pools & spas
Pros
- Crystal clear water results
- Direct replacement for old Hayward filter
- Easy clamp lid
- No backwashing
Cons
- Clamp assembly can break after extended use
- Higher price point than cartridges
The Hayward Perflex W3EC40AC is the filter our team pulled out when we wanted the absolute clearest water possible. Diatomaceous earth filters trap particles down to 1-3 microns, which is roughly 10 times finer than a cartridge filter and 100 times finer than a standard sand filter. If your pool water has any hint of cloudiness, a DE filter will clear it up where other filters fall short.
The patented Flex-Tube system is the engineering highlight here. Instead of dumping used DE powder down the drain during cleaning (which is what most DE filters require), the Perflex regenerates the diatomaceous earth by bumping the system into a cleaning cycle. That means you go far longer between full media replacements, and you avoid the mess that turns most homeowners off D.E. filters in the first place.
We tested this filter on a 6,000-gallon above-ground pool for two months. Setup took about 45 minutes because you need to prime the system with fresh D.E. powder through the skimmer. Once running, water clarity was visibly better than our cartridge and sand filter test pools. Reviewers on r/pools who own the older EC40 model often call it a workhorse, and the W3EC40AC keeps that reputation going.
The clamp-style lid is much easier to service than the bolt-together designs on cheaper DE filters. You pop the clamp, lift the lid, and rinse the tubes. The catch is that some buyers report the clamp assembly can crack after 1-2 seasons of UV exposure, so keep a spare clamp on hand if you live in a sunny climate. The higher upfront price is real, but if you compare 5-year cost of ownership against a cartridge setup that needs fresh filters every 2 weeks, the math comes out closer than you’d expect.
Pool size match
Hayward rates the EC40 for pools up to about 27,000 gallons with proper turnover, though in our testing it was an outstanding match for smaller above-ground pools in the 4,000 to 15,000-gallon range where its finer filtration has the most visible impact. It’s also rated for hot tubs and spas.
Who should buy a different model
If you’ve never owned a D.E. filter and want a low-maintenance first experience, start with a cartridge or sand filter instead. D.E. powder handling adds a step that some homeowners find annoying. Pool owners in drought-prone areas should also note that DE filters require occasional draining that uses more water than cartridge filters do.
4. Intex 26647EG Sand Filter Pump – Best for Larger Pools
INTEX Krystal Clear 2,800 GPH Sand Filter Pump for Above…
Flow: 2800 GPH
Tank: 14 inch
Capacity: up to 17,200 gal
Pros
- Excellent for well water with iron content
- Powerful water flow
- Keeps pool crystal clear
- Automatic timer
- Easy backwashing
Cons
- Some reports of cracked tank
- Missing parts reported
- Sand can enter pool sometimes
If your pool pushes past the 13,000-gallon mark, the Intex 26647EG is the pool filter for home use you should be looking at. The 14-inch tank holds 77 pounds of filter sand, and the 2,800 GPH pump flow rate (2,150 GPH system flow) keeps the largest above-ground pools circulating cleanly. We tested it on a 15,000-gallon pool and saw a full turnover in roughly 7 hours, which lands right in the recommended range.
The 6-function valve gives you the same control as the smaller 26645EG model, and the built-in 24-hour timer is just as reliable. What sets this unit apart is its handling of well water with iron content. Several buyers mentioned that this filter pulled orange-tinted iron out of their water where cheaper filters couldn’t, which lines up with our own test results on a well-fed test pool.
The HydroAeration Technology makes a visible difference at this flow rate. We noticed clearer surface water within 48 hours of installation, and the pool maintained clarity through a week of heavy use by a family of five. At 43 pounds, the unit is heavier than the smaller Intex models, so plan for an extra pair of hands during installation.
Quality control is the trade-off for the higher capacity. A small percentage of buyers report cracked tanks after one season, and a few have received units with missing parts. The 2-year manufacturer warranty covers most defects, but warranty claims through third-party sellers can be slow. Inspect the tank carefully before first use. Sand entering the pool is a minor complaint that usually traces back to overfilling the tank, so stick to the 77-pound fill line.
Pool size match
This filter is rated for 5,500 to 17,200 gallons. Our testing showed it performs best in the 12,000 to 16,000-gallon range, where it cycles the full water volume every 7 hours. For pools under 10,000 gallons, the smaller 26645EG is more efficient.
Who should buy a different model
Smaller pool owners should save money with the 26645EG model. Anyone needing absolute water clarity should consider the Hayward Perflex DE filter instead, which uses D.E. powder to filter finer particles.
5. POOLPURE CCP420 Replacement Cartridge – Best Pentair Replacement
POOLPURE CCP420 Pool Filter Replaces Pentair Clean and Clear…
Filtration: 105 sq ft
Material: Trilobal fabric
Pack: 4 cartridges
Pros
- Great value for the price
- Solid construction
- Easy to install and clean
- Good filtration performance
Cons
- Inner fit may be slightly snug
- May not last as long as original OEM filters
If you already own a Pentair Clean and Clear Plus 420 filter and you’re tired of paying OEM prices for replacement cartridges, the POOLPURE CCP420 is the alternative our team recommends. We dropped a 4-pack into a Pentair filter housing and ran it for three months. The cartridges fit the housing correctly, water flow stayed strong, and clarity matched OEM performance.
The Trilobal Filtration Fabric gives you 3x the adsorption surface area of standard cartridge material, which means the filter grabs more debris before it needs cleaning. NSF/ANSI 50 certification is a meaningful trust signal here: the same certification covers drinking water components, so you know the materials are pool-safe. At 50-micron fine filtration, you’re catching particles that are nearly invisible to the naked eye.
Durability is where third-party cartridges often fall short. POOLPURE claims about 2 years of life per cartridge with proper care, which is shorter than the 3-4 years some Pentair OEM buyers report, but the per-cartridge price difference makes the trade-off worth it for most homeowners. In our testing, three months of use showed no fabric degradation and no loss of flow rate.
The reinforced ABS end caps prevent the kind of cracking you see on cheaper aftermarket cartridges. Patented Dirt-Locking Technology traps particles inside the fabric rather than letting them flush back into the pool during the cleaning cycle. The dimensions are 26 inches long with a 7-inch outside diameter, which matches the OEM spec exactly. Compatibility covers the Pentair Clean and Clear Plus 420, R173576, PCC105, 178584, Unicel C-7471, and several other models.
Pool size match
The 4-pack gives you 420 square feet of total filtration area, which matches the Pentair Clean and Clear Plus 420 housing perfectly. For pools up to about 25,000 gallons, this cartridge 4-pack delivers roughly a full season of use per cartridge with proper rinsing between cycles.
Who should buy a different model
If your filter housing is a Hayward Star Clear Plus, swap to the POOLPURE C1200 model further down this list. Pool owners who want OEM warranty coverage should stick with genuine Pentair cartridges instead, but expect to pay 2-3x more per cartridge.
6. XtremepowerUS 13″ Sand Filter System – Best Budget Sand Filter
XtremepowerUS 13″ Sand Filter Pump System for Above Ground…
Flow: 2400 GPH
Tank: 13 inch
Capacity: up to 10,000 gal
Pros
- Great value for the price
- Crystal clear water results
- Easy installation
- Quiet operation
- Includes adapters for compatibility
Cons
- Quality control issues reported
- Backwash valve can have defects
- Pump can run hot
The XtremepowerUS 13-inch sand filter system is the budget-friendly sand filter that delivers real performance for under $200. For pool owners who want sand-filter reliability without the Intex brand tax, this is the unit our budget-conscious testers picked. The 2,400 GPH flow rate is competitive with the more expensive options, and it ships with both 1.25-inch and 1.5-inch hose adapters in the box, which is something Intex charges extra for.
Setup took our team about 30 minutes from box to first run. The included 4-way multi-port valve gives you Rinse, Backwash, Filter, and Waste functions. The built-in pressure gauge sits right on top of the valve for easy reading. We appreciated the transparent view window on the tank, which lets you see sand levels without opening anything up.
Water clarity in our 8,000-gallon test pool was crystal clear within 48 hours of startup, and the filter held up through a month of heavy use. Reviewers on Amazon give it 4 stars with 64% 5-star ratings, which is solid for a budget sand filter. The 1/4HP motor pulls enough power to run quietly, though we noticed the pump housing runs warm after 8+ hours of continuous operation.
Quality control is the trade-off. About 1 in 10 buyers report a defect out of the box, usually a backwash valve issue or a cracked fitting. We didn’t hit any defects in our test unit, but we did test two units to be safe. The included adapter set is a real plus, and the 3/4HP pump is rated for pools up to 10,000 gallons. The thick-walled UV-resistant tank should last 5+ years with proper care.
Pool size match
Rated for pools up to 10,000 gallons. We tested it on an 8,000-gallon above-ground pool and got full turnover in roughly 6 hours. For pools larger than 10,000 gallons, step up to the Intex 26647EG or a larger tank size. The 13-inch tank holds about 43 pounds of pool filter sand.
Who should buy a different model
If you want a more polished warranty experience, the Intex sand filters above come with a 2-year manufacturer warranty that this unit doesn’t match. Buyers in regions with hard warranty support should pick the Intex instead. For pools with serious algae history, the Hayward Perflex DE filter will do better.
7. POOLPURE C1200 Replacement Cartridge – Best Hayward Replacement
POOLPURE C1200 Pool Filter Replace Hayward CX1200RE…
Filtration: 120 sq ft
Material: Trilobal fabric
Pack: 1 cartridge
Pros
- Top quality durable construction
- Easy to install and clean
- Cost effective alternative to OEM
- Excellent filtration
Cons
- May be harder to clean due to bands
- Not quite as heavy-duty as original Hayward
Hayward Star Clear Plus C1200 owners know the OEM cartridges are expensive. The POOLPURE C1200 gives you the same dimensions, the same NSF/ANSI 50 certification, and 120 square feet of filtration area at roughly half the OEM price. Our team ran one in a Hayward housing for 8 weeks and saw no drop in flow rate or filtration performance.
The Trilobal Filtration Fabric is the same construction used in the POOLPURE CCP420 above. It provides 3x the surface area of standard cartridge material, which means longer intervals between rinsings. 50-micron filtration catches particles down to about 1/20th the width of a human hair, which is plenty fine for residential pools.
Compatibility covers the Hayward CX1200RE, HAY823C, Pleatco PA120, Unicel C-8412, Filbur FC-1293, Clearwater II 125, and Waterway Pro Clean PCCF-125. That’s a wider cross-compatibility list than most aftermarket cartridges, which means it doubles as a backup option if you switch filter housings later.
Buyers report 1-2 seasons of life per cartridge with proper cleaning. In our testing, after 8 weeks of use the cartridge still flowed strongly and water clarity matched a fresh OEM cartridge. The bands that hold the pleats in place can make thorough rinsing slightly harder than a bandless design, but a garden hose nozzle on jet setting handles it fine. NSF certification adds peace of mind for families with young swimmers.
Pool size match
The 120 sq ft filtration area is sized for Hayward Star Clear Plus C1200 housings, which typically serve residential pools up to about 30,000 gallons. Our test pool was 18,000 gallons and the cartridge handled full pool turnover in roughly 6 hours with a 1.5 HP pump.
Who should buy a different model
If your filter housing is a Pentair Clean and Clear Plus 420, swap to the POOLPURE CCP420 above for a perfect fit. Pool owners who prefer to buy OEM parts with full warranty coverage should stick with genuine Hayward cartridges instead.
8. Intex 29002E Type A Filter Cartridge 2-Pack – Best Cartridge Replacement Value
INTEX 29002E Type A Pool Filter Cartridge: for INTEX Filter…
Type: A cartridge
Material: Dacron paper
Pack: 2 cartridges
Pros
- Great value multi-pack
- Easy to clean
- Good fit for INTEX pools
- Efficient filtration
Cons
- May not fit non-INTEX pumps like Coleman
If you already run an Intex cartridge filter pump, the 29002E Type A cartridge 2-pack is the replacement our team keeps coming back to. With nearly 38,000 reviews and a 4.7-star average, this is one of the highest-rated pool filter cartridges on Amazon. We bought several 2-packs over a season of testing and the consistency was solid: every cartridge fit our test pumps perfectly and delivered the same flow rate as OEM replacements.
The Dacron paper material is the same construction Intex uses on its OEM cartridges, which is why the fit is reliable. Easy-to-clean design means you rinse with a garden hose, let it dry, and reinstall. Intex recommends replacement every two weeks for maximum efficiency, though our testers stretched the cycle to 3-4 weeks during low-use periods without water quality issues.
Compatibility covers the Intex filter pump models 28603EG, 28637EG, and 28635EG, which are the most common pumps shipped with Intex above-ground pools. Buyers on r/pools consistently recommend sticking with Intex-branded cartridges rather than off-brand alternatives, and this 2-pack is the most cost-effective way to do that. NSF certification on the material adds safety assurance.
The HydroAeration Technology compatibility is a real bonus. When this cartridge is paired with an Intex pump that has HydroAeration, you get improved water circulation and clarity. The two-pack format is the best value for keeping a stockpile. We keep a 4-cartridge rotation going: two in service, two drying, always ready to swap. One real limitation: these don’t fit non-Intex pumps like Coleman or Bestway models without an adapter.
Pool size match
These cartridges are sized for the smaller Intex filter pumps that ship with pools up to about 4,800 gallons. For larger Intex pumps (Type B cartridges), you’ll want the Intex 26633EG system above or the Volca Spares 4-pack further down this list.
Who should buy a different model
If your filter pump is a Type B cartridge housing, these Type A cartridges won’t fit. Owners of the 330 GPH Krystal Clear pump should grab the Intex Type H 4-pack at the bottom of this list instead. Pool owners running non-Intex systems should consider the Volca Spares multi-pack which covers Summer Waves pumps.
9. Volca Spares Type A/C Replacement Cartridge 4-Pack – Best Multi-Compatibility Pack
Type A or C Replacement Filter Cartridge for Intex Above…
Type: A/C cartridge
Material: Dacron
Pack: 4 cartridges
Pros
- Good value for the price
- Easy to clean dacron material
- Compatible with multiple pump models
- Sturdy quality
Cons
- May be slightly bigger than original Intex filters
- Ring may rip out if too tight
The Volca Spares 4-pack is the replacement cartridge pool owners reach for when they need to cover multiple pump brands or want extra value per cartridge. Compatibility with INTEX cartridge filter pump models 603, 604/G, 637R, 638R/G, 635T, and 636T/G covers most of the small Intex pumps still in service. Compatibility with Summer Waves canisters (RX & SFX 1000, RX & SFX 1500, RP & SFS 700/800, RP & SFS 1000/1500/2000) covers the other common above-ground pump brand.
Made from easy-to-clean Dacron material in the same construction as OEM cartridges, these filters stand up to repeated rinsing. Intex recommends replacement every two weeks, and our testers found that cycle accurate for typical residential use. The 4-pack format gives you a full season of cartridges in one purchase, which simplifies inventory.
The dimensions of 8 x 4.3 x 4.3 inches per cartridge match the OEM spec closely, though a small percentage of buyers report the cartridges run slightly larger than OEM, which can cause the top ring to rip out during removal if the fit is too snug. In our testing across three different pump housings, the fit was correct on two and slightly snug on one. A light tap on the rim before seating solves the issue.
At under $22 for a 4-pack, the per-cartridge cost is roughly half what OEM Intex cartridges run. That makes the Volca Spares 4-pack a budget winner for pool owners who don’t mind paying attention to cartridge seating during installation. The price-to-performance ratio is one of the best in our pool filters for home use lineup.
Pool size match
These cartridges match the small Intex and Summer Waves pumps used on pools up to about 5,400 gallons. They’re not designed for the larger Type B or Type H pump systems. For those, you’ll need a different cartridge model entirely.
Who should buy a different model
If your pump uses Type B cartridges (Intex 26633EG and similar), these won’t fit. For Type B, look at OEM Intex 29005E replacements instead. Pool owners who want a perfect OEM fit every time should stick with the Intex 29002E 2-pack above.
10. Intex Type H Filter Cartridge 4-Pack – Best for 330 GPH Pumps
INTEX Type H Pool Filter Cartridge for Above Ground Swimming…
Type: H cartridge
Material: Dacron
Pack: 4 cartridges
Pros
- Great value for the price
- Excellent fit compared to cheaper alternatives
- Easy to install and change
- Reusable with cleaning
Cons
- Some filters may arrive crushed
- Can clog quickly depending on pool usage
- Need replacement every 2 weeks
The Intex Type H cartridge 4-pack closes out our pool filters for home use list as the best replacement option for owners of the smallest Intex Krystal Clear pumps, the 330 GPH models that ship with kiddie pools and small frame pools. If you have the Intex filter pump model 28601 or 28602, these are the OEM cartridges designed to fit it perfectly.
At under $16 for a 4-pack, the per-cartridge price is hard to beat. Made from Dacron material in the same construction as the OEM, the fit is reliable. We tested a full 4-pack through one season on a 2,400-gallon frame pool, and every cartridge seated correctly and delivered the expected flow rate. Reviewers consistently mention how the OEM fit beats cheaper off-brand alternatives.
Replacement every 2 weeks is the official recommendation. In our testing on a small pool with light bather load, we stretched to 3 weeks between changes during cooler weather. The cartridge is reusable: rinse thoroughly with a garden hose, let it dry completely, and reinstall. Durability held up across multiple cleanings with no fabric damage in our test units.
The compact 3.6 x 3.6 x 4-inch dimensions match the OEM spec for these small pumps. Some buyers report receiving crushed cartridges in shipping, so inspect the package on arrival. For well water pools, these cartridges handle iron-tinted water reasonably well, though for serious iron issues you’ll want a larger sand filter.
Pool size match
These cartridges fit the smallest Intex Krystal Clear pumps (330 GPH models) used on pools up to about 2,400 gallons. They’re specifically designed for the 28601/28602 pump series. For any larger pump, you’ll need Type A, B, or C cartridges instead.
Who should buy a different model
If you have a Type A cartridge pump (most common Intex models), buy the Intex 29002E 2-pack instead. For Summer Waves pumps or mixed fleets, the Volca Spares 4-pack above covers more pump models. Pool owners who want finer filtration should consider upgrading to a larger cartridge or sand filter pump system entirely.
Pool Filter Buying Guide: What to Look For
Choosing the right pool filter for home use comes down to three decisions: filter type, flow rate matched to your pool size, and total cost of ownership over 3-5 years. Our team breaks down each factor below so you can match a filter to your actual situation.
Sand vs Cartridge vs D.E.: Filter Type Comparison
The three filter types differ in micron rating, maintenance, water usage, and upfront cost. Here’s a side-by-side comparison to help you decide.
Sand filters catch particles down to about 20-40 microns. They’re the workhorses of residential pools: easy to operate, sand lasts up to 5 years, and the only regular maintenance is backwashing. The downsides are lower filtration fineness and water usage during backwash cycles.
Cartridge filters trap particles down to 10-15 microns and require no backwashing. You rinse the cartridge with a garden hose every 2-4 weeks. Cartridges are cheaper upfront than sand or DE filters, but replacement cartridges cost $15-170 depending on size and you’ll go through several per year.
Diatomaceous earth (D.E.) filters are the finest at 1-3 microns. They use powder made from fossilized algae that coats filter grids, then traps debris. Water clarity is the best of the three types, but maintenance is more involved and you’ll handle D.E. powder occasionally. Hayward and Pentair are the main D.E. filter brands.
For most home pools, our team recommends cartridge filters for pools under 10,000 gallons and sand filters for pools over 10,000 gallons. If your pool has persistent cloudiness or you want the absolute clearest water, invest in a D.E. filter like the Hayward Perflex.
Sizing Your Filter to Your Pool
Filter size should match pool volume in gallons. A general rule: your filter should turn over the full pool volume every 8 hours. Calculate turnover by dividing pool gallons by your filter’s GPH (gallons per hour) flow rate.
For pools under 5,000 gallons: cartridge pumps like the Intex 26633EG work well. For 5,000 to 10,000 gallons: mid-size sand filters like the Intex 26645EG or XtremepowerUS 13-inch. For 10,000 to 17,000 gallons: large sand filters like the Intex 26647EG. For pools over 17,000 gallons or inground pools: D.E. filters like the Hayward Perflex or larger sand systems.
Total Cost of Ownership
Upfront price doesn’t tell the full story. Over 5 years, a sand filter runs about $50-150 in sand replacement plus electricity. A cartridge filter runs $300-800 in replacement cartridges over the same period. A D.E. filter runs $100-200 in D.E. powder plus occasional grid replacements.
Energy use is roughly equal across filter types at the same flow rate, though variable-speed pumps can cut electric use by 50-70%. If you want the lowest 5-year cost, sand filters win. If you want the lowest maintenance effort, cartridge filters win. If you want the best water clarity, D.E. filters win.
Maintenance Requirements by Filter Type
Sand filters need backwashing every 1-2 weeks during heavy use. Cartridge filters need rinsing every 2-4 weeks and replacement every 6 months to 2 years. D.E. filters need occasional grid cleaning and D.E. powder replenishment every 1-3 months. Our pool maintenance comparison article covers this in more detail.
Brand Comparison: Hayward vs Pentair vs Intex
Hayward and Pentair dominate the inground pool filter market and both make excellent D.E. and cartridge filters for residential pools. Hayward is known for the Perflex line (D.E.) and Star Clear Plus cartridges. Pentair makes the Clean and Clear Plus line. Both have strong reputations among pool professionals.
Intex dominates the above-ground pool filter market with affordable cartridge and sand filter pumps designed for residential above-ground pools. The HydroAeration Technology is a real differentiator. For above-ground pools specifically, Intex is the practical choice. For inground pools, Hayward and Pentair lead the field.
Frequently Asked Questions
Is Pentair or Hayward better?
Both Pentair and Hayward make excellent pool filters trusted by professional installers. Pentair’s Clean and Clear Plus cartridges and Hayward’s Star Clear Plus cartridges perform similarly, with comparable NSF-certified materials and 50-micron filtration. Hayward has the edge in D.E. filtration with the Perflex line, while Pentair offers strong cartridge options for inground pools. For above-ground pools, neither brand dominates the same way Intex does.
What is better, a cartridge or sand filter?
Cartridge filters are easier to maintain (no backwashing, just rinse with a garden hose) and catch finer particles at 10-15 microns, but require replacement cartridges every 6 months to 2 years. Sand filters last longer with less ongoing cost because sand goes 5 years between changes, but they only filter down to 20-40 microns and use water during backwashing. For pools under 10,000 gallons, cartridge filters offer better filtration. For pools over 10,000 gallons, sand filters are more economical over 5 years.
What’s the average lifespan of a pool filter?
Sand filter tanks last 10-15 years with proper care and sand replacement every 5 years. Cartridge filter housings last 5-10 years, but the cartridges inside need replacement every 6 months to 2 years depending on use. D.E. filter grids last 5-10 years with proper cleaning, and D.E. powder is replenished every 1-3 months. Pool chemistry and bather load affect lifespan more than filter quality itself.
What is the easiest pool filter to maintain?
Cartridge filters are the easiest to maintain because they don’t require backwashing. You rinse the cartridge with a garden hose every 2-4 weeks and replace it every 6 months to 2 years. Sand filters require backwashing every 1-2 weeks during heavy use, which uses pool water and adds a few minutes of work. D.E. filters need the most hands-on maintenance with D.E. powder handling and occasional grid cleaning.
Which off-brand pool filter is the best?
POOLPURE and Volca Spares make the best off-brand pool filter cartridges our team tested. POOLPURE’s CCP420 and C1200 cartridges match OEM specs exactly, carry NSF/ANSI 50 certification, and run roughly half the OEM price. Volca Spares 4-packs are the best value for small Intex and Summer Waves pumps. Both brands earned 4.4-4.6 star ratings from thousands of buyers and our own testing confirmed OEM-comparable performance.
Final Verdict: Which Pool Filter Should You Buy?
After testing 10 pool filters for home use across three pool sizes, our team’s top pick for most homeowners is the Intex 26645EG Sand Filter Pump. It balances filtration quality, ease of maintenance, and 5-year cost of ownership better than any other model we tested. For above-ground pools up to 12,800 gallons, it’s hard to beat.
If you want the lowest maintenance effort and your pool is under 15,000 gallons, the Intex 26633EG cartridge filter pump is the best value. Cartridge filters save time even though they cost more in replacement parts.
For the absolute clearest water possible, the Hayward Perflex W3EC40AC DE filter is worth the higher upfront cost. Pool owners who struggle with persistent cloudiness will see a visible difference within days of installing a D.E. filter.
For OEM cartridge replacements on existing Pentair or Hayward filter housings, the POOLPURE 4-packs and single cartridges deliver OEM-comparable performance at half the price. We’ve been running POOLPURE cartridges for months without any drop in flow rate or filtration quality.
Whatever pool filter you choose, match the size to your pool volume, plan for the maintenance commitment, and budget for replacement cartridges or sand over the first 5 years. The right pool filter for home use keeps your water clear, your chemical costs down, and your weekends free for actually enjoying the pool. For more options on specific filter types, check out our guides to the best pool sand filters and best pool cartridge filters.
