Finding the best above ground pool filter starts with one plain question. Do you need a whole system, or only a tank? This guide uses catalog listings and maker pages checked on October 16, 2026. It does not use hands-on testing.
1. Intex Krystal Clear 26645EG Sand Filter Pump
Intex Krystal Clear SX2100 / 26645EG Intex Krystal Clear SX2100 / 26645EG
Our verdict:
Specified Intex pools
A sand pump/filter system for an Intex pool within its documented range.
View on Amazon- Pump and sand filter sold as a system
- Published pump flow 2,100 GPH; system flow 1,600 GPH
- Catalog lists a 12-inch tank and 50-lb sand capacity
Keep in mind: Confirm the exact Intex pool and fittings. Published flow is not your installed operating point; backwashing needs a wastewater route.
This is a sand filter and pump sold as one set. The catalog title lists a 12 inch tank and 50 pounds of sand capacity. It also lists a pool range of 2,800 to 12,800 gallons. The maker's product page is on the Intex site.
The catalog says the pump suits Intex above ground pools up to 12,800 gallons. That is the most direct fit statement in this group. It names Intex pools, so other pool brands stay unknown. A gallon range is a screening step. It is not proof that the set will match your own pool.
Two flow numbers appear in the catalog, and they mean different things. The 2,100 gallons per hour figure is the pump flow. The 1,600 gallons per hour figure is the in-pool system flow. Neither number tells you what you will get with your own hose length and fittings.
The catalog describes a six function valve. It names filter, backwash, rinse, recirculate, drain and close. It also lists a 24 hour timer with preset cycles from 2 to 12 hours. A timer sets run time. It does not promise that the whole pool is covered in that time.
The catalog says partial assembly is needed and lists two 1.5-inch connector hoses. Confirm the exact package before ordering adapters or replacement parts. Do not assume that a familiar Intex name makes fittings from another system interchangeable.
Here is a concrete example. Say you own an Intex pool well under 12,800 gallons, and the old pump has failed. You want one box and a simple hose hookup. This set replaces both the pump and the filter in one step.
The main limit is the backwash job. This cleans the sand by sending water out through a waste line. Plan that route before buying the system. A long advertised sand life does not remove routine pressure checks or backwashing when the manual calls for it.
2. Doheny's Pool Pro 70 Square Foot Cartridge System
Doheny's 70 sq ft Cartridge Filter System Doheny's 70 sq ft Cartridge Filter System
Our verdict:
Complete cartridge system
For a compatible above-ground setup when replacing the pump and cartridge filter together.
View on Amazon- 70 sq ft filter area
- Selected full system includes a 1 HP pump
- Catalog lists 115V/60Hz and a 1.5-inch threaded connection
Keep in mind: Select the full system, not a filter-only option. Confirm operating flow and fittings; Doheny’s own listing excludes California shipping.
This is a cartridge filter system with a pump. The catalog title lists 70 square feet of filter area and a 1 HP pump. It also says the system is for above ground pools. The maker's page is on the Doheny's site.
The current Doheny's page title and product description identify the 70-square-foot system with a 1 HP pump. The old wording in its web address is not the current specification. Use the selected product option and pump label, rather than treating a URL fragment as proof of another pump version.
Check that the order is for this full system. Doheny's also sells other filter sizes and filter-only options. Confirm the option, pump and fittings before planning the installation. An image of an assembled system does not establish what each purchase option includes.
The catalog lists a non-woven cartridge, a pressure gauge and an air release valve. It also specifies a locking closure, a 1.5-inch threaded connector and 115V/60Hz power. Those are useful setup checks. None proves that the pump's installed flow will suit every above-ground pool.
The catalog also makes a filter only note. Filter only purchases do not include the pump, the system base or the pump to tank connection. This means you must confirm that your listing is the full system. A mix up here could leave you with a tank and nothing to drive it.
Doheny's own listing excludes shipping this system to California. Check the exact seller's availability before planning around this option. That is a retailer restriction, not a finding about every cartridge filter or every seller.
Here is a concrete example. Say you have an old pump and tank that both need to go. You want a cartridge setup and a matched pump in one order. This system fits that plan, once the pump size is confirmed.
Filter area is not pool area, so 70 square feet does not set the pool limit by itself. Pump horsepower is not operating flow either. Cartridges need manual rinsing, with deeper cleaning guided by the exact manual. This is a complete-system option, rather than a promise that no fitting or flow check remains.
3. Swimline HYDROTOOLS Sure-Flo 70 Square Foot Cartridge Tank
Swimline HYDROTOOLS Sure-Flo 70 sq ft Tank Swimline HYDROTOOLS Sure-Flo 70 sq ft Tank
Our verdict:
Keep a compatible pump
A tank-and-element choice when the existing compatible pump will stay.
View on Amazon- 70 sq ft cartridge filter area
- Tank and element included
- Catalog identifies a separate compatible base kit
Keep in mind: No pump, base or connection accessories included. Catalog and manufacturer gallon claims differ, so this review does not merge them.
This is a tank and element only. The catalog says it includes the cartridge filter tank and an included filtration element. It leaves out the pump base and the connection parts. It does not include a pump. The maker's page is on the Swimline site.
The catalog says it pairs with item 76000 Premium Base Kit and a compatible pump. That makes it a part of a build, not a finished system. You must source the other pieces and make sure they work together. If any piece is missing, the tank cannot do its job.
The catalog lists 70 square feet of filter area. It also describes single cell technology that spreads captured dirt. The catalog says this leads to longer cycles with less servicing. That is a catalog claim and not a measured result.
Other catalog details help with upkeep. The top cover has a tightening ring and a latch lock. The catalog says this gives an air tight seal and simple element changes. It also lists a pressure gauge and a release valve. For the release steps, follow the maker's manual.
The catalog and the maker's selected 70-square-foot option give different gallon limits. This review does not merge them or borrow the lower figure as a new specification. Check the exact model and permitted flow instead. A tank's filter area is useful, but a disputed pool-volume label should not decide the purchase.
Here is a concrete example. Say your pump runs fine and your base is in good shape, but the old tank has cracked. A new tank and element could be a sensible swap. You would still check that the hose sizes and fittings match.
The limit is large. If you do not already own a compatible pump and base, this is not a complete answer. Buying it alone leaves you with parts that do nothing.
Factors to consider when choosing the best above ground pool filter
Start with the parts you need to replace. A tank upgrade and a complete-system replacement are different purchases. Use this checklist before comparing features or size labels.
| Your starting point | What you need to establish | What to compare |
|---|---|---|
| Keep the existing pump | Its operating flow, condition and connections | Filter tank, element and required base or fittings |
| Replace the pump and filter | The pool's required flow and fitting limits | A complete compatible system and its actual inclusions |
| Keep an Intex pool's factory connections | Exact pool and pump model requirements | The specified Intex system before adding adapters |
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Start with your pump. If it works and you plan to keep it, a tank only part may be enough. If the pump is old or the match is unclear, a full system removes one guess. If your pool is an Intex, the Intex set has the most direct stated fit.
Next, think about upkeep. Sand needs backwashing. Cartridges need rinsing by hand. Those are different chores with different water use and different mess.
Here is a second example. Say you have a small pool on a patio with no drain nearby. A cartridge system may suit you better, because rinsing does not need a backwash line. Say instead that you dislike handling a wet element. Then sand may feel easier, if you have a place for the backwash water.
A third example is a mixed case. Say you own a non-Intex pool and want one box. The Intex set is not stated to fit it, so skip it. The Doheny system, once its pump size is confirmed, is the more sensible place to look.
Flow and upkeep checks for the best above ground pool filter
Filter area is not pool area. Filter area is the surface that catches dirt. A bigger number can mean longer gaps between cleanings. It does not tell you the size of pool the filter can serve.
Pump horsepower is not flow. Horsepower is how strong the motor is. Flow is how much water moves. Hoses, fittings and the height of the pool all change real flow. A pump curve in the manual shows more than a horsepower label.
Gallon ranges are screening tools. A maker's range helps you rule parts in or out. It does not prove an installed match. Use the pool filter size calculator for a first check, then read the exact manual.
Match the fittings. Check the hose size on your pool and on the filter. The Intex set lists 1.5 inch hoses. The Doheny system lists a 1.5 inch threaded connector. If your pool uses a different size, you may need an adapter, and that is a cost to plan for.
Check the power. The Doheny catalog lists 115V/60Hz. Make sure your outlet and cord setup suit that. Follow the manual for any electrical safety rule.
Think about upkeep. Sand is backwashed. Cartridges are rinsed. The DE versus cartridge guide explains that filter distinction, while the DE versus sand guide covers a different comparison. Do not treat all three media as the same maintenance task.
Confirm what is in the box. The Intex set includes a pump and hoses. Doheny's full-system choice has a pump, with separate filter-only options to avoid mixing up. The Swimline tank needs a compatible pump, base and connections.
Do not expect a filter to do everything. A filter catches debris. It does not replace sanitizer or balanced water. No particle-capture size is assigned here without exact model evidence.
How We Picked
This comparison uses the catalog listings and current manufacturer pages for three products. It reports published specifications and explains their limits. There was no hands-on testing, measured flow trial or water-clarity test.
The choices address three buying needs: a sand pump/filter set for a specified Intex pool, a complete cartridge system, and a cartridge tank for an existing compatible pump. Product scope comes before feature ranking. That helps avoid paying for a part that cannot do the intended job on its own.
Conflicting capacity statements stay separate. Missing fit is left unknown, rather than inferred from a tank size or motor label. The choices exclude Renewed listings. Each source must support the exact model and purchase scope being discussed.
Catalog claims are labeled as catalog claims. Maker notes win over broader catalog wording. You can read more about how pages are made in the editorial policy and the sources and corrections page.
More in this guide
- Pool filter size calculator
- How to clean a pool filter
- How to clean a pool filter cartridge
- How to change sand in a pool filter
- How to vacuum with a sand filter
- DE versus sand filter
- DE versus cartridge filter
Our verdict on the best above ground pool filter
Start with the scope of the best above ground pool filter for your job. The Intex set names a specific pool family. The Doheny's choice is a full cartridge system. The Swimline choice is a tank and element, with no pump or base.
If you own an Intex pool in the listed range, the Intex 26645EG is the most direct choice. The maker lists it for Intex above ground pools up to 12,800 gallons. Check the backwash drain plan before you order.
For a whole cartridge setup, compare the current Doheny's 70-square-foot system with its 1 HP pump. Confirm the selected option and full-system inclusions. Then match its operating flow and connections to the pool, rather than treating the motor label as a sizing answer.
If you already own a working, compatible pump and a base, the Swimline tank is the narrow fix. If you do not, skip it. Whatever you pick, follow the exact manual for setup and cleaning.
Frequently asked questions
How big a filter does my above ground pool need?
Start with your pool volume and the maker's stated range for the exact model. Then compare the pump flow to the filter's needs using the manual. A larger filter area helps only if the pump and plumbing match it. Use the size calculator on this site for a first screen, then confirm with the manual.
Is sand or cartridge easier for an above ground pool?
It depends on the work you prefer. Sand systems use backwashing, which sends water out through a drain line. Cartridge filters are rinsed by hand after you take out the element. Neither is simply easier. Check where your backwash water may go and how you feel about handling a wet element before you choose.
Can I buy the Swimline tank alone and run it?
No. The catalog says it includes the tank and a filter element only. It leaves out the pump, base and connection parts. It pairs with item 76000 Premium Base Kit and a compatible pump, per the catalog. Confirm that pump, hoses and fittings fit before you buy, because fit is unknown until then.
Does a timer or a bigger filter keep the water clear alone?
No single part does that. Water care also depends on sanitizer, balance, debris and run time. A timer sets when the pump runs. A bigger filter area can give dirt more room to collect. Neither one replaces the manual's guidance or regular water checks.
