Best Pool Filters (2026)
The best pool filters for 2026, comparing sand and cartridge systems from Hayward, Intex, and more, with sizing guidance so your filter keeps up with your pump.
The best pool filter for most inground pools is the Hayward ProSeries 24-inch sand filter, a durable, name-brand unit that is cheap to maintain and easy to backwash. Above-ground owners are best served by an all-in-one system like the Intex Krystal Clear sand filter pump, and if you run a cartridge filter, the right replacement cartridges matter more than anything. Below are six real options across filter types and budgets, plus how to size a filter to your pump.
Best Pool Filters for 2026
Hayward ProSeries Sand Filter, 24-Inch Top-Mount
$689.00 on Amazon
A name-brand inground sand filter built to last, with an easy 6-position backwash valve.
Intex 3,000 GPH Krystal Clear Sand Filter Pump
$222.99 on Amazon
All-in-one sand filter and pump for above-ground pools, with an automatic timer.
VEVOR FlashPure 14in Sand Filter Pump, 3500 GPH
$189.90 on Amazon
Ready-to-use sand system with timer and 6-way valve, media pre-installed for fast setup.
POOLPURE CCP420 Filter Cartridges (4-Pack)
$169.99 on Amazon
Replacement cartridges for the popular Pentair Clean & Clear Plus 420, 4 x 105 sq ft.
Future Way C1200 Cartridge for Hayward Star Clear Plus
$49.99 on Amazon
120 sq ft replacement cartridge for Hayward Star Clear Plus C1200 housings.
Intex Type A Filter Cartridge (3-Pack)
$10.99 on Amazon
Easy-clean Dacron cartridges for Intex above-ground filter pumps, a budget 3-pack.
Your filter is the part of the pool system that physically removes dirt, leaves, oils, and fine particles from the water. It works hand in hand with your pump, which pushes water through the filter media, and with your sanitizer, which kills what the filter cannot catch. The three common filter types are sand, cartridge, and diatomaceous earth (DE). Sand and cartridge filters cover the needs of the vast majority of backyard pools, so those are the focus here.
Quick comparison
| Filter | Type | Best for | Price |
|---|---|---|---|
| Hayward ProSeries 24in | Sand (tank) | Inground, long service life | $689.00 |
| Intex 3,000 GPH | Sand (all-in-one) | Above-ground, plug and play | $222.99 |
| VEVOR FlashPure 14in | Sand (all-in-one) | Best value system | $189.90 |
| POOLPURE CCP420 (4-pack) | Cartridge | Pentair Clean & Clear Plus 420 | $169.99 |
| Future Way C1200 | Cartridge | Hayward Star Clear Plus housings | $49.99 |
| Intex Type A (3-pack) | Cartridge | Intex above-ground pumps | $10.99 |
Prices on Amazon move around, so treat these as a snapshot. Whatever type you pick, the filter has to keep up with your pump's flow, so confirm that number with our pump size calculator before you buy.
Hayward ProSeries 24-Inch Sand Filter (Best Inground Sand)
The Hayward ProSeries is the sand filter pool pros install when they want something that lasts. The 24-inch top-mount tank pairs a large filter area with a simple 6-position multiport valve, so backwashing, rinsing, and winterizing are a matter of turning a handle. Sand filters like this are forgiving, inexpensive to maintain, and only need fresh sand every five to seven years. As a Hayward unit, parts and valve components are easy to source, which is why it is the top pick for owners who want a permanent, low-fuss inground filter.
Intex 3,000 GPH Krystal Clear Sand Filter Pump (Best Above-Ground)
For above-ground pools, this Intex unit combines the pump and sand filter in one package with an automatic timer, so setup is close to plug and play. The 3,000 GPH flow suits mid-size above-ground pools, and the integrated timer lets you schedule daily filtration without buying extra equipment. Verified owners value the simplicity: connect the hoses, add filter sand, set the timer, and you have a complete filtration system. It is the easiest path to clear water for a seasonal above-ground pool.
VEVOR FlashPure 14-Inch Sand Filter Pump (Best Value System)
The VEVOR FlashPure is a complete sand system that ships ready to use, with the filter media pre-installed, a built-in timer, and a 6-way valve. The 0.75 HP motor moves up to 3,500 GPH, making it a strong fit for above-ground pools that want faster turnover at a lower price than name-brand systems. Because the media comes installed, the out-of-box setup is genuinely quick. For owners chasing the best filtration per dollar, it is the value standout.
POOLPURE CCP420 Cartridge Set (Best Cartridge Set)
If you already own a Pentair Clean & Clear Plus 420 cartridge filter, the housing is only as good as the cartridges inside it. This POOLPURE 4-pack provides 420 square feet of filtration as direct replacements, and cartridge filters need no backwashing, so they save water compared with sand. Verified owners report clean water and a proper fit for the popular Pentair housing. Keeping a fresh set on hand means you can swap dirty cartridges for clean ones and rinse the old set at your leisure.
Future Way C1200 Cartridge (Best Single Cartridge)
For Hayward Star Clear Plus C1200 filter housings, this Future Way cartridge is an affordable 120 square foot replacement. A single high-quality cartridge restores the fine filtration these housings are known for, and at this price it is easy to keep a spare so you are never down while a dirty one dries. Cartridge filtration traps finer debris than sand and skips backwashing entirely, which is a real advantage where water is scarce.
Intex Type A Cartridge 3-Pack (Lowest Price)
Owners of Intex above-ground filter pumps will burn through Type A cartridges over a season, and this 3-pack is the budget way to stay stocked. The Dacron paper cartridges are easy to rinse and cheap to replace, so you simply swap them as they load up rather than fighting to clean a worn-out one. For a small or seasonal above-ground pool, keeping a few of these on hand is the simplest filtration upkeep there is.
How we chose
We did not bench-test these filters. Instead, we compared published manufacturer specifications, filter area and type, flow ratings, valve and maintenance design, and fitment for popular housings, then weighed them against patterns in verified owner reviews on Amazon. We prioritized filters that match real backyard needs: durable sand tanks for permanent inground setups, all-in-one systems for above-ground pools, and correctly fitting replacement cartridges for the most common name-brand housings.
We deliberately included both filter types because the right choice depends on your situation. Sand wins on simplicity and maintenance cost, cartridge wins on fine filtration and water savings. We also called out fitment for specific Pentair, Hayward, and Intex housings, since buying a cartridge that does not match your filter is the most common mistake owners make. Flow and filter-area figures here come from manufacturer claims, so treat them as estimates and match the filter to your own pump.
How to size a filter to your pump
The golden rule is that the filter must keep up with the pump. A filter rated below your pump's flow will clog fast, spike in pressure, and choke circulation, so size the filter to your pump's gallons per minute, then add headroom rather than buying right at the limit. The steps are simple:
- Find your pump's flow rate in gallons per minute. Use our pump size calculator if you are not sure.
- Pick a filter rated at or above that flow, with extra capacity so it does not run at its ceiling.
- For cartridge filters, confirm the cartridge model matches your housing exactly before buying.
- Watch the pressure gauge and backwash or rinse when pressure climbs 8 to 10 psi above the clean starting point.
Get the filter and pump matched, keep an eye on the gauge, and pair it with balanced water chemistry, and your filter will deliver clear water with very little fuss all season long. The filter handles the debris, your sanitizer handles the safety, and the two together are what keep a pool sparkling.
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Frequently Asked Questions
What is the best type of pool filter: sand, cartridge, or DE?
Each has a place. Sand filters are durable, cheap to maintain, and easy to backwash, which makes them the popular all-around choice for inground and above-ground pools. Cartridge filters trap finer particles and use no backwashing, so they save water, but the cartridges need periodic cleaning and replacement. DE filters filter the finest of all but require the most maintenance. For most owners, a quality sand or cartridge filter is the right call.
What size pool filter do I need?
Your filter must keep up with your pump's flow rate, so size the filter to your pump, not the other way around. A filter rated below your pump's gallons per minute will clog and lose pressure quickly. Find your pump's flow first, then pick a filter rated at or above it. Our pump size calculator helps you nail the flow number so your filter and pump are properly matched.
How often should I backwash or clean my filter?
Watch the pressure gauge, not the calendar. Backwash a sand filter or rinse a cartridge when the pressure rises about 8 to 10 psi above the clean starting pressure, since that rise means the media is loaded with debris and flow is dropping. Cleaning too early wastes water and reduces filtration efficiency, so let the gauge tell you when the media actually needs attention.
Are cartridge filters better than sand?
Cartridge filters trap finer particles than sand and need no backwashing, which saves water and works well where water is scarce or expensive. The trade-off is that you hose off and eventually replace the cartridges rather than flipping a backwash valve. Sand filters are simpler and cheaper to maintain but trap slightly larger particles. Neither is universally better, it depends on your water, your budget, and how hands-on you want to be.
How long do filter cartridges and sand last?
Filter cartridges typically last one to three seasons depending on use and how well you rinse them, then they should be replaced once the pleats break down or no longer clean up. Filter sand usually lasts about five to seven years before the grains wear smooth and filter less effectively. Keeping a spare cartridge on hand means you are never stuck with a cloudy pool waiting on a part.
Does the filter clean the water by itself?
No. The filter removes physical debris and particles, but it does not sanitize the water. You still need proper chlorine or a salt system plus balanced pH, alkalinity, and stabilizer to kill bacteria and prevent algae. The filter and your chemistry work together: the filter clears the cloudiness, and the sanitizer keeps the water safe. Both have to be working for clear, healthy water.
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