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2.5" x 20" Filters (Commercial RO + Whole House)

Replacement Whole House and Commercial RO Water Filters.

2.5" x 20" Filters fit Slim Big Blue 20" Housing

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  1. 12 Pack: Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    12 Pack: Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    $124.99
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  2. 2 Pack: Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    2 Pack: Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    $23.99
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  3. 2.5" x 20" Standard Blue Refillable Birm Filter - for Iron and Manganese Reduction | Whole House Water Filter
    2.5" x 20" Standard Blue Refillable Birm Filter - for Iron and Manganese Reduction | Whole House Water Filter
    Special Price $39.99 Regular Price $54.99
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  4. 2.5" x 20" Standard Blue Refillable Whole House Water Filter Cartridge - Catalytic Carbon
    2.5" x 20" Standard Blue Refillable Whole House Water Filter Cartridge - Catalytic Carbon
    $39.99
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  5. 2.5" x 20" Standard Refillable Well Water Filter - for Iron, Sulfur and Chlorine Reduction | KDF 85 + KDF 55 + Activated Carbon
    2.5" x 20" Standard Refillable Well Water Filter - for Iron, Sulfur and Chlorine Reduction | KDF 85 + KDF 55 + Activated Carbon
    $52.00
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  6. 2.5" x 20" Standard Water Filter: Bone Char for Fluoride Removal Refillable Cartridge
    2.5" x 20" Standard Water Filter: Bone Char for Fluoride Removal Refillable Cartridge
    $39.99
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  7. 20" Standard Blue Iron & LimeScale Reducing Water Filter Cartridge 2.5" x 20" | for Whole House Standard Housing Filtration Systems
    20" Standard Blue Iron & LimeScale Reducing Water Filter Cartridge 2.5" x 20" | for Whole House Standard Housing Filtration Systems
    $55.99
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  8. 20" Standard Water Filter KDF 55/GAC: Removes Chlorine, Heavy Metal Cartridge 2.5" x 20"
    20" Standard Water Filter KDF 55/GAC: Removes Chlorine, Heavy Metal Cartridge 2.5" x 20"
    $45.00
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  9. 4 Pack: Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    4 Pack: Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    $43.99
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  10. 6 Pack: Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    6 Pack: Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    $63.99
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  11. Carbon Block Filter: Replacement Slim Blue 20" Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20"
    Carbon Block Filter: Replacement Slim Blue 20" Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20"
    $14.99
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  12. HydroLogic TALLBoy KDF85/Catalytic Carbon Compatible Filter
    HydroLogic TALLBoy KDF85/Catalytic Carbon Compatible Filter
    Special Price $58.99 Regular Price $69.99
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  13. PACK OF 12: Replacement Slim Blue 20" Pre-Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20" Sediment, Carbon Block, GAC Filter, Post Carbon Inline
    PACK OF 12: Replacement Slim Blue 20" Pre-Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20" Sediment, Carbon Block, GAC Filter, Post Carbon Inline
    Special Price $174.99 Regular Price $209.99
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  14. PACK OF 12: Replacement Slim Blue 20" Pre-Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20" Pleated Sediment, Carbon Block, GAC Filter, Post Carbon Inline
    PACK OF 12: Replacement Slim Blue 20" Pre-Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20" Pleated Sediment, Carbon Block, GAC Filter, Post Carbon Inline
    Special Price $182.99 Regular Price $214.99
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  15. PACK OF 4 Carbon Block Filters: Replacement Slim Blue 20" Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20"
    PACK OF 4 Carbon Block Filters: Replacement Slim Blue 20" Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20"
    Special Price $45.00 Regular Price $60.00
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  16. Pack of 4: Whole House/Commercial Reverse Osmosis GAC Granular Coconut Shell Carbon Water Filter Cartridges 2.5" x 20"
    Pack of 4: Whole House/Commercial Reverse Osmosis GAC Granular Coconut Shell Carbon Water Filter Cartridges 2.5" x 20"
    Special Price $59.99 Regular Price $64.99
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  17. PACK OF 9: Replacement Slim Blue 20" Pre-Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20" Pleated Sediment, Carbon Block, GAC Filter
    PACK OF 9: Replacement Slim Blue 20" Pre-Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20" Pleated Sediment, Carbon Block, GAC Filter
    Special Price $146.99 Regular Price $184.99
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  18. PACK OF 9: Replacement Slim Blue 20" Pre-Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20" Sediment, Carbon Block, GAC Filter
    PACK OF 9: Replacement Slim Blue 20" Pre-Filters/Cartridges for Commercial Reverse Osmosis RO Water Filtration Systems | 2.5" x 20" Sediment, Carbon Block, GAC Filter
    Special Price $141.99 Regular Price $179.99
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  19. Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    Polyester Pleated Sediment Water Filter 2.5" x 20" |10 Micron Filtration for Big Blue Whole House Filtration Systems
    $13.99
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  20. Refillable, Empty Water Filter Cartridge Universal Slimline (2.5" D x 20" H) - for Standard 20" Housing
    Refillable, Empty Water Filter Cartridge Universal Slimline (2.5" D x 20" H) - for Standard 20" Housing
    Special Price $17.99 Regular Price $25.00
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  21. Replacement Big Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20"
    Replacement Big Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20"
    Special Price $53.00 Regular Price $63.00
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  22. Replacement Standard Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" - KDF 55 (City Water)
    Replacement Standard Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" - KDF 55 (City Water)
    $73.00
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  23. Replacement Standard Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" Pleated
    Replacement Standard Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" Pleated
    Special Price $55.00 Regular Price $65.00
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  24. Replacement Standard Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" Pleated - KDF 55/85
    Replacement Standard Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" Pleated - KDF 55/85
    $75.00
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  25. Replacement Standard Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" - KDF 85 (Well Water)
    Replacement Standard Blue Pre-Filters/Cartridges for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" - KDF 85 (Well Water)
    $75.00
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  26. Replacement Standard Slim Filters/Cartridges + Inline for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20"
    Replacement Standard Slim Filters/Cartridges + Inline for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20"
    Special Price $60.00 Regular Price $85.00
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  27. Replacement Standard Slim Filters/Cartridges + Inline for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" Pleated
    Replacement Standard Slim Filters/Cartridges + Inline for Commercial Reverse Osmosis Water Filtration Systems - 2.5"x20" Pleated
    Special Price $63.00 Regular Price $93.00
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  28. Roll over image to zoom in Refillable, Empty Water Filter Cartridge Universal Slimline (2.5" D x 20" H) - for Standard 20" Housing (Clear)
    Roll over image to zoom in Refillable, Empty Water Filter Cartridge Universal Slimline (2.5" D x 20" H) - for Standard 20" Housing (Clear)
    Special Price $17.99 Regular Price $25.00
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  29. Slim Blue Cartridge 2.5" x 20" | Mixed Bed DI Resin - for Spot Free Car Rinse
    Slim Blue Cartridge 2.5" x 20" | Mixed Bed DI Resin - for Spot Free Car Rinse
    $69.99
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  30. Slim Blue Water Cartridge 2.5" x 20" | Cation Softening Resin 10% Cross Linked
    Slim Blue Water Cartridge 2.5" x 20" | Cation Softening Resin 10% Cross Linked
    $42.99
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  31. Standard Blue KDF 85/GAC Water Filter: Removes Iron/Sulfur/Rotten Egg Smell Cartridge 2.5" x 20"
    Standard Blue KDF 85/GAC Water Filter: Removes Iron/Sulfur/Rotten Egg Smell Cartridge 2.5" x 20"
    $45.00
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  32. Standard Blue KDF85/Catalytic Carbon Water Filter 2.5" x 20" Fits Slim 20" Housing Hydroponics
    Standard Blue KDF85/Catalytic Carbon Water Filter 2.5" x 20" Fits Slim 20" Housing Hydroponics
    Special Price $54.99 Regular Price $64.99
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  33. Wall Mounting Bracket for 3 Standard Filter Housings
    Wall Mounting Bracket for 3 Standard Filter Housings
    $25.99
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  34. Whole House Big Blue Replacement Water Filter: Strong Base Anion - Nitrate Reduction Cartridge (2.5" x 20")
    Whole House Big Blue Replacement Water Filter: Strong Base Anion - Nitrate Reduction Cartridge (2.5" x 20")
    Special Price $63.99 Regular Price $73.99
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  35. Whole House/Commercial Reverse Osmosis GAC Granular Coconut Shell Carbon Water Filter Cartridge 2.5" x 20"
    Whole House/Commercial Reverse Osmosis GAC Granular Coconut Shell Carbon Water Filter Cartridge 2.5" x 20"
    Special Price $15.99 Regular Price $19.99
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