Pool Filters

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Pentair PNSD0035DE1160

Pentair PNSD0035DE1160

Pentair Sand Dollar Aboveground Sand Filter System, 1.0 HP - 1.4 Sq. Ft Filter Area

Our Price: $346.99
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Unicel 4CH-30

Unicel 4CH-30

Unicel Series 4000 Filter Cartridge for Spas, 30 Sq. Ft.

Our Price: $20.20
as low as: $18.79

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Hayward SPX1408B

Hayward SPX1408B

Hayward SP1408 Return Face Plate Inlet Cover for Pool Filter - No Thread

Regular Price: $2.99
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Pentair 27002-0125S

Pentair 27002-0125S

Pentair Sta-Rite Pool Cartridge for the System 2 Modular Media Filter (PLM125), 125 Sq. Ft.

Our Price: $161.99
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Hayward S311SXV

Hayward S311SXV

Hayward Pro Series Plus 31" Side-Mount Sand Filter - 99 GPM, 4.95 Sq. Ft.

Our Price: $669.99
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Unicel UHD-SR135

Unicel UHD-SR135

Unicel Series 8000 Filter Cartridge for Pools, 135 Sq. Ft.

Our Price: $79.70
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Hayward SX240D

Hayward SX240D

Hayward Pro-Series Sand Filter Lateral

Regular Price: $4.99
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Unicel C-5625

Unicel C-5625

Unicel Series 5000 Filter Cartridge for Spas/Pools, 25 Sq. Ft., 5" OD

Our Price: $19.20
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Pentair PNCC0200OP2260

Pentair PNCC0200OP2260

Pentair Clean & Clear Aboveground Cartridge Filter System, 2 HP Pump - Two-Speed - 200 Sq. Ft Filter Area

Our Price: $607.99
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Pentair PNEC0090OF2160

Pentair PNEC0090OF2160

Pentair EasyClean Aboveground D.E. Filter System, 1.5 HP - Two-Speed - 30 Sq. Ft Filter Area

Our Price: $562.99
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Pentair PNEC0090OF1260

Pentair PNEC0090OF1260

Pentair EasyClean Aboveground D.E. Filter System, 1.5 HP - 30 Sq. Ft Filter Area

Our Price: $542.99
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Jandy CS200

Jandy CS200

Jandy 200 Sq. Ft. CS Cartridge Pool Filter

Our Price: $539.99
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Pentair PNCC0200OP1160

Pentair PNCC0200OP1160

Pentair Clean & Clear Aboveground Cartridge Filter System, 2 HP Pump - 200 Sq. Ft Filter Area

Our Price: $525.99
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Pentair PNCC0100OF2260

Pentair PNCC0100OF2260

Pentair Clean & Clear Aboveground Cartridge Filter System, 1.5 HP Pump - Two-Speed - 100 Sq. Ft Filter Area

Our Price: $527.99
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Hayward SX180HG

Hayward SX180HG

Hayward Pro Series Plus Sand Filter Drain Cap and Gasket

Regular Price: $5.99
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136-150 of 213 products Sort by 

How to Select

How to shop for Pool filter

Pool filter is an essential device for keeping a pool clean of objects, crystal clear, healthy and at appropriate sanitizing level. It helps not only to remove foreign matter and particles from the pool water but does not allow dangerous bacteria and germs to come in the pool water. These useful devices keep the water from going septic and, therefore, stop swimmers from getting sick. They should be used for both in ground and above ground pools to keep them from algae formation and turning green. This is why it is important to purchase a high-quality filter that will last for long and will keep the pool in optimum condition in every kind of weather and at any season.

There are a variety of pool filters that are available on the market today. They differ by size and depend on the water pool capacity and filtration area. At the same time, all pool filters come in three types: sand filters, cartridge filters and diatomaceous earth (DE) filters.

Sand filters are the most popular and the oldest type out of all the three available filter kinds. They are inexpensive, easy to use and understand. This device cleans the pool water that is pulled into the filter from particles and bacteria through the sand. Filters of this kind are considered to be the least effective type as the water that has passed through the filter and flows back into the pool contains a lot of sand. In addition, the pool filter of this kind becomes full with dirt and grime after a time and it needs a pool pump to flush it out from the water.

Cartridge filters clean the pool water by means of the special filtering material. Filters of this kind are considered to be less expensive than their DE counterparts and they are relatively low-maintenance devices. These filters contain removable cartridges that are easy to clean and replace. Filtering materials can be of different quality. Inexpensive filtering material will need to be replaced frequently while high quality and expensive cartridges will operate for many years without needing replacement.

Diatomaceous earth, or DE filters are the most expensive and the highest quality pool filters. They use crushed fossil or natural substances to clean the pool water. These substances are usually thinner than sand and these filters produce the cleanest water possible. At the same time, these filters need frequent replacement that makes this filter type more expensive in maintenance and fiddly to use.

The best modern pool filter will ensure the cleanest pure pool water, eliminate possibility of diseases caused by pool bacteria and reduce power energy consumption. However, any type of the filters needs regular maintenance and keeping it clean and free from dirt, leaves and hair.