Cartridge Filters & Replacements

Cartridge Filters (Diatomaceous Earth)
Cartridge filters are also popular with Canadian pool owners and may be known as diatomaceous earth (DE) filters. With these models, diatomaceous earth coats the filter grids and the pool water passes through it. Diatomaceous earth is actually a fine powder which is produced from the fossilized remains of diatoms, which are chemically inert sea organisms. The powder is placed in a cartridge filter which is made of corrugated paper or polyester cloth. When the dirt and debris starts to block the filter you just need to take the filter out and wash it off before reinstalling it. Some of the better filters can last for up to eight years before they need to be replaced.


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  1. Hot Tub Filter Cleaning Canister - 24 1/2 Hot Tub Filter Cleaning Canister - 24 1/2
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    Hot Tub Filter Cleaning Canister - 24 1/2"
    Regular Price $34.99 Special Price $27.99
  2. Hot Tub Filter Cleaning Canister - 30 Hot Tub Filter Cleaning Canister - 30
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    Hot Tub Filter Cleaning Canister - 30"
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  3. Waterway 100 sq/ft 1HP Pump Clear Water A/G Cartridge System 1100453 Waterway 100 sq/ft 1HP Pump Clear Water A/G Cartridge System 1100453
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    Waterway 100 sq/ft 1HP Pump Clear Water A/G Cartridge System
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  4. Waterway 425sq/ft Crystal Water Cartridge Filter 1100455 Waterway 425sq/ft Crystal Water Cartridge Filter 1100455
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    Waterway 425sq/ft Crystal Water Cartridge Filter
    Regular Price $1,029.99 Special Price $899.99
  5. Unicel Cartridge Filter 4CH-20 7354 Unicel Cartridge Filter 4CH-20 7354
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    Unicel Cartridge Filter 4CH-20
    Regular Price $59.99 Special Price $39.99
  6. Unicel Cartridge Filter 4CH-22 638557 Unicel Cartridge Filter 4CH-22 638557
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    Unicel Cartridge Filter 4CH-22
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  7. Unicel Cartridge Filter 4CH-24 340345 Unicel Cartridge Filter 4CH-24 340345
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    Unicel Cartridge Filter 4CH-24
    Regular Price $59.99 Special Price $39.99
  8. Unicel Cartridge Filter 4CH-30 7254 Unicel Cartridge Filter 4CH-30 7254
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    Unicel Cartridge Filter 4CH-30
    Regular Price $74.99 Special Price $54.99
  9. Unicel Cartridge Filter 6CH-47 379900 Unicel Cartridge Filter 6CH-47 379900
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    Unicel Cartridge Filter 6CH-47
    Regular Price $79.99 Special Price $59.99
  10. Unicel Cartridge Filter 6CH-940 21854 Unicel Cartridge Filter 6CH-940 21854
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    Unicel Cartridge Filter 6CH-940
    Regular Price $79.99 Special Price $59.99
  11. Unicel Cartridge Filter 7CH-40 1493 Unicel Cartridge Filter 7CH-40 1493
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    Unicel Cartridge Filter 7CH-40
    Regular Price $99.99 Special Price $79.99
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