Pool Care

What Is The Best Pool Filter

Pools are lovely to see and have around the home. However, no matter how good a pool may look, it is pretty useless if it’s unhealthy. A pool filter keeps the pool healthy by removing dirt and algae deposited by swimmers. Little wonder, pool owners often question; what is the best pool filter on the market? Getting the best pool filter requires a bit of technical experience and some mathematical calculations. There is no right pool filter for everyone as your choice depends on your pool.

To help you decide without stress, we compiled a review of the 14 best pool filters in 2020.

Go through the list and select what you think is most compatible with your pool.

Here Comes a List of Some of The Best Pool Filter in 2020

1. Intex Krystal Clear Sand Filter Pump for Above Ground Pools

This is one of the best pool filters for above ground pools. It is a sand filter, which means it filters dirt and algae from the water by passing it through fine sand. It is capable of filtering 1,050 gallons per hour and works on pools containing less than 8,400 gallons. It features a sextuple control system that enables you to filter, backwash, recirculate, rinse, drain, and close the system. It has a digital timer that helps you automatically turn the pump on and off each day and can be set to run for up to 12 hours. Intex Krystal Clear offers a two-year warranty period for assurance on their product quality.

2. Intex 28633EG Krystal Clear Cartridge Filter Pump for Above Ground Pools

Intex Cartridge filter pump is also an excellent above ground pool filter. It runs a cartridge filter pump, in contrast to the sand filter pump. Generally, cartridge filters do a better filtering job than sand filters. In addition to this advantage, the Intex cartridge filter is more voluminous than the previously reviewed alternative, working in pools of up to 15,200 gallons capacity. Despite its advantages, you’ll have to replace the cartridge pump bi-weekly, which can be tedious.

3. Intex Krystal Clear Sand Filter Pump for Above Ground Pools, with GFCI

This sand pool filter does the same jobs as every preceding element in this review. However, this pool filter is capable of handling much bigger pools than the first. It is also more cost-effective than the cartridge filter because unlike the cartridge filter, you won’t have to regularly change anything. The sand, which is replaced every 5 years, is the only sort of maintenance. The Intext sand filter pump with GCI also cleanses large amounts of water, even more than the clear sand filter pump.

4. Hayward EC40AC Perflex Extended-Cycle D.E. Pool Filter

Extended-Cycle D.E. Pool Filter is a Diatomaceous Earth-type (D.E.) filter, another distinct type of pool filter known to be the best performers amongst pool filters. However, D.E. filters require much more maintenance than the sand and cartridge pool filter types.

They clean even the smallest of dirt, detecting dirt as small as 2 microns. Hayward Extended-Cycle D.E. Pool Filters automatically cleanse itself and its flex tubes of dirt and D.E. media, reducing the maintenance work you’ll need to do.

5. Intex 28635EG Krytal Clear Cartridge Filter Pump for Above Ground Pools

This pool filter is designed for your above ground pools to make your pools cleaner than ever. Being a cartridge filter, it’s easy to set up, although the setup might be a little daunting for a first-timer. It utilizes replaceable filter cartridges to work. Cartridges should be replaced every two weeks, for optimum performance. It features a digital auto-timer to help in automating the machine’s work.  It is powerful enough to filter up to 3,500 gallons per hour and is capable of handling pools containing 9,000 gallons of water without glitches. This product is unarguably the best cartridge filter pump for above ground pools produced by Intex for home and private use.

6. Intex Krystal Clear 1500 GPH Sand Filter Pump & Saltwater System with E.C.O

GPH Sand Filter Pump is an amazing filter for saltwater pools. If you’ve got a salt water pool, all the above-mentioned filter pumps may not work reliably for you. It uses the electrocatalytic oxidation system to keep your pool free from dirt and chlorine particles. It is equipped with GCFI and can handle pools of up to 8,500 gallons. As with all sand filters, this system also requires little maintenance, which involves changing the sand only once, in five years. This makes it a cost-effective alternative to cartridge and D.E. filters.

7. Hayward W3S220T ProSeries Sand Filter, 22-Inch, Top Mount

Hayward W3220T sand filter is a pool filter designed to work in harsh conditions while retaining its excellent filtering qualities. It constructed from a durable material, making it corrosion-free and suitable for all weather.  It is a large pressure filter, with room for winterizing. It is suitable for all types and sizes of inground pools. It has a 6-position VariFlow control for ease of use. Its self-cleaning 360 degrees slotted laterals save a bit of maintenance work, while constantly providing a neat and attractive pool. These features make it an excellent pool filter for in ground pools.

8. Hayward W3DE3620 ProGrid D.E. Pool Filter, 36 Square Foot

While we’ve seen a sand pool filter for inground pools, here’s a superior alternative; ProGrid D.E. Pool Filter. The ProGrid D.E. Pool Filter stands as one of the best D.E. pool filters available, with the ability to release clear water with less power. The construction materials (glass polymer) makes it durable and corrosion-free. It can be used both in the home and for larger public pools due to its durability and efficiency. It is designed to filter up to 144 gallons per minute. It has a clamp that enables instant access to the internal components of the system without touching any technical components. For inground pools, ProGrid D.E. is, in fact, a no-brainer.

9. SUNCOO Pro 2450GPH Sand Filter Pump 13-inch Tank Pool Pump

This is a pool filter for above ground pools by SUNCOO. This pool filter is not only easy to assemble and use, but it also supports a wide range of pools and works under harsh conditions to ensure your pool’s water is sparkling clean. Being a sand filter, it has an enormous tank that can hold up to 45lbs of sand. This is enough to clean 45,000 gallons of the water pool, which is quite a huge amount. The tank is highly durable and corrosion-proof, which means you’ll have some peace for some years.

With a turnaround rate of up to 2,450 GPH, this sand filter is more than twice more capable than the first pool filter reviewed in this article. It also has a low noise feature that accounts for part of its popularity. Its filtration is high-precision, which enables it to release sparkling clean water each time.

In addition to these, it enables you to filter, backwash, rinse, and waste, making it a four-way filter.

10. Hayward W3EC40C92S Perflex 1 HP D.E. Filter Pump System

1 HP D.E. Filter Pump System is another Diatomaceous Earth filter pump that filters dirt from pools from above ground pools with high precision. This is an excellent pool filter for removing very minute dirt particles from the pool. Because it uses the D.E. media, it produces clean water with one of the highest precision dirt removal processes available. The injection-molded tanks are also durable and resistant to corrosion. The Flex-Tubes utilized by the pool filter automatically cleanse themselves of D.E. filter media and other dirt particles to save you the stress of manual cleaning.

11. Rx Clear Radiant Sand Filter For Above Ground Swimming Pools

Rx Clear Radiant is another great pool filter for above ground pools. It’s an economical alternative to other sand filters and is capable of cleaning fairly large pools and making the water suitable for swimming.

The sand filter is efficient for pools of up to 16,000 gallons. It is made from durable products, and as a sand filter, you can keep using it for years with little maintenance. It also gives you the option of using Rx Clear Luster Filter Media, as an alternative to sand. This filter media is lighter and filters more accurately than sand. It won’t clog your filter, thereby reducing the rate of backwash.

12. Pentair Triton II Side Mount Filter TR100 Fiberglass Sand Filter without Valve

The Triton II Side Mount filter combines a compelling interface with unmatchable quality to deliver one of the best pool filters on the market. Over 8 hours, the filter can filter more than 47,000 gallons of water. It has a corrosion-proof UV-resistant surface, which makes it unequaled in durability, and equally efficient for dog hair.

13. Hayward W3S166T ProSeries Sand Filter, 16-inch, Top-Mount

This pool filter is a high-pressure sand filter for rapid servicing.  It equally distributes the water over the sand beds to create an even filtration which speeds up the filtering process.  It is produced with highly-resistant, non-corrosive materials which makes it suitable for even the harshest of weather conditions. Being a sand filter means you won’t have to worry about changing any cartridges. However, it won’t be as accurate as of the cartridge filters. It features an umbrella-fold self-cleaning lateral system for effective backwashing and performance.

14. XtremepowerUS 4500GPH 19” Sand Filter with 1.5HP For Above Ground Swimming Pool Pump

XtremepowerUS Sand Filter is an extremely powerful and filter that’s capable of filtering as much as 4,500 gallons per hour. The machine has been optimized to run with lesser noise, for maximum comfort. It also features a durable build, which elongates its life. It can filter a pool with up to 18,000 gallons capacity and the drum holds up to 175lbs of sand. Its built-in thermal overload protector ensures a swimmer’s security at all times. It is an excellent recommendation if you’d like to see your pool, sparkling clean.

Frequently Asked Questions

Q: What size pool filter do I need?

A: It depends on your pool, and your expectations. You should verify if the pool filter, you’re buying can filter your pool. You should also check the gal/m to have an estimate of the pool filter size you’ll need.

Q: Do pool filters need electricity?

A: Yes! Modern pool filters need electricity to operate efficiently. The electricity consumption is usually indicated on the product by horsepower.

Q: Do pool filters use a lot of electricity?

A: Again, this may depend on the one you chose. Choosing a high-performance pool filter for home use might unnecessarily consume a lot of energy, adding to your power bills. A pool filter with 0.25 or 0.5HP (horsepower) will be ideal for home use.

Q: When to clean pool filter?

A: Pool filters should be cleaned after a few weeks of usage, depending on the type and brand. Generally, D.E. filters should be cleaned everyone to three months. Cartridge filters will need cleaning after one to four weeks while sand filters are two to six weeks.

Q: Does pool filter sand need to be changed?

A: After an enormous time of usage, you might want to consider replacing the sand in the sand filter. This is nothing frequent, and it’s a matter of years.

Q: When to change the pool filter?

A: When the pool filter has declined drastically in performance, it should be replaced. This is noticeable by a reduction in water flow, or when the pressure rises to 8psi and above. Also, a tear or disfiguration of the center core of the cartridge could mean it’s time for a replacement.

Q: Where to buy a pool filter?

A: You can order for pool filters online, on Amazon using the links provided in this review. You won’t be charged an extra penny for any purchase made from clicking these links.

Q: Why is my pool filter blowing out sand?

A: When sand blows out of the pool filter, it means one of the components is broken. Whenever you notice this, it means you should be getting a replacement soon.

Q: Why pool filter pressure low?

A: When the pool filter pressure is low, it means there is a problem. There might be a blockage restricting water from getting through it.

Q: How long should a pool filter run?

A: This depends on the volume of your pool and the rate of the pool filter. To calculate how long a filter should run, divide your pool volume by the filtration rate of the pool filter, then multiply the result by 2.

(Pool Volume / Filtration Rate) / 2 = Hours to run filter

Q: How much is a pool filter?

A: Depends much on the pool filter’s capacity. However, be prepared to spend anywhere around $200 to $1500 for a pool filter.


For every pool owner, getting a pool filter is a no-brainer. However, it’s essential to calculate your pool volume and other essential metrics before buying one. You should also determine if you’d like a sand filter, D.E. filter, or a cartridge filter. Once armed with these, you can find out the best pool filters for your pool, that’ll work efficiently, and is within your budget.

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