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Water Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

376 Products found

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  1. W9121200 Doulton/W9121207 British Berkefeld Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
    W9121200 Doulton/W9121207 British Berkefeld Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge

    W9121200 Doulton/W9121207 British Berkefeld Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge

    Price $34.99 List Price Price $49.99 Save 30%
    1 Pack Selected
  2. Remineralization & pH Balancing filter by Tier1
    Remineralization & pH Balancing filter by Tier1

    Remineralization & pH Balancing filter by Tier1

    Price $22.99 List Price Price $32.99 Save 30%
    1 Pack Selected
  3. Replacement Chlorine, Taste & Odor Reduction Media for Tier1 Eco and Precision Series Whole House Water Filtration Systems
    Replacement Chlorine, Taste & Odor Reduction Media for Tier1 Eco and Precision Series Whole House Water Filtration Systems

    Replacement Chlorine, Taste & Odor Reduction Media for Tier1 Eco and Precision Series Whole House Water Filtration Systems

    Price $89.99 List Price Price $128.99 Save 30%
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    1 Pack Selected
  4. SWC-25-2010 Hydronix Sediment Replacement Filter
    SWC-25-2010 Hydronix Sediment Replacement Filter

    SWC-25-2010 Hydronix Sediment Replacement Filter

    Price $21.99 List Price Price $30.99 Save 29%
    1 Pack Selected
  5. PENTEK-CFB-30 Carbon Block Replacement Filter Cartridge
    PENTEK-CFB-30 Carbon Block Replacement Filter Cartridge

    PENTEK-CFB-30 Carbon Block Replacement Filter Cartridge

    Price $89.99 List Price Price $128.99 Save 30%
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    1 Pack Selected
  6. Doulton/British Berkefeld 2.24 Gallon Stainless Steel Gravity-Fed Countertop System with ATC Purification Candle Filters
    Doulton/British Berkefeld 2.24 Gallon Stainless Steel Gravity-Fed Countertop System with ATC Purification Candle Filters

    Doulton/British Berkefeld 2.24 Gallon Stainless Steel Gravity-Fed Countertop System with ATC Purification Candle Filters

    Price $199.95 List Price Price $285.99 Save 30%
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    1 Pack Selected
  7. Doulton W9380003 Housing + W9125010 10" Limescale Reduction Cartridge
    Doulton W9380003 Housing + W9125010 10" Limescale Reduction Cartridge

    Doulton W9380003 Housing + W9125010 10" Limescale Reduction Cartridge

    Price $207.99 List Price Price $297.99 Save 30%
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    1 Pack Selected
  8. Everpure EV9612-16 H-104 Replacement Filter Cartridge
    Everpure EV9612-16 H-104 Replacement Filter Cartridge

    EV9612-16 Everpure H-104 Replacement Water Filter Cartridge

    Price $132.99 List Price Price $189.99 Save 30%
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    1 Pack Selected
  9. W9121214 Doulton ATC Super Sterasyl Replacement Element
    W9121214 Doulton ATC Super Sterasyl Replacement Element

    Doulton W9121214 /W9121215 British Berkefeld ATC Super Sterasyl (Ultra Sterasyl) Ceramic Water Filter

    Price $33.99 List Price Price $48.99 Save 30%
    1 Pack Selected
  10. Doulton W9361122 Gravity Water Filter System Stainless Steel with 4x ATC Super Sterasyl Candle Filters
    Doulton W9361122 Gravity Water Filter System Stainless Steel with 4x ATC Super Sterasyl Candle Filters

    Doulton W9361122 Gravity Water Filter System Stainless Steel with 4x ATC Super Sterasyl Candle Filters

    Price $252.99 List Price Price $361.99 Save 30%
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    1 Pack Selected
  11. A101 Aries Undersink Comparable Filter Replacement Cartridge by Tier1
    A101 Aries Undersink Comparable Filter Replacement Cartridge by Tier1

    A101 Aries Undersink Comparable Filter Replacement Cartridge by Tier1

    Price $55.99 List Price Price $79.99 Save 30%
    1 Pack Selected
  12. W9120133 British Berkefeld 7 Inch Ultra Fluoride Imperial Gravity Filter
    W9120133 British Berkefeld 7 Inch Ultra Fluoride Imperial Gravity Filter

    W9120133 British Berkefeld 7 Inch Ultra Fluoride Imperial Gravity Filter

    Price $39.95 List Price Price $56.99 Save 29%
    1 Pack Selected

376 Products found

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Shopping Options
Category
  1. Undersink Water Filters & Systems52item
  2. Inline Water Filters48item
  3. Reverse Osmosis Water Filter Replacement Cartridges and Kits72item
  4. Commercial Grade Water Filters & Systems66item
  5. Countertop Water Filter Systems17item
  6. Water Filter Pitchers & Dispensers9item
  7. Camping Water Filters & Systems9item
  8. Shower Water Filters & Filter Systems10item
  9. Household Filters10item
Brand
  1. 3M4item
  2. American Hydro Systems1 item
  3. American Plumber5item
  4. Aqua Flo2item
  5. Aqua-Pure5item
  6. Aries3item
  7. Berkey4item
  8. BevGuard1 item
  9. Claris1 item
  10. Crystal Quest2item
  11. Culligan28item
  12. Cuno1 item
  13. Doulton20item
  14. DuPont2item
  15. Everpure9item
  16. Filtrete2item
  17. GE9item
  18. Harmsco4item
  19. Hydrologic4item
  20. Hydronix6item
  21. Hydrotech4item
  22. Hytrex2item
  23. Inline Water Filters2item
  24. Insinkerator1 item
  25. Manitowoc3item
  26. GE Merlin2item
  27. Microline3item
  28. OmniFilter3item
  29. Omnipure27item
  30. Pentek61item
  31. Pioneer2item
  32. Pro Products1 item
  33. PuROTwist1 item
  34. Purtrex5item
  35. QMP1 item
  36. Rainshow'r3item
  37. Rusco7item
  38. Sprite3item
  39. Tier191item
  40. Viqua39item
  41. Water Factory Systems1 item
  42. Watts5item
  43. Whirlpool2item
  44. ZeroWater6item
Primary Filter Media
  1. Activated Carbon Block56item
  2. Activated Carbon w Ion Exchange Resin1 item
  3. Calcite & Magnesium Oxide2item
  4. Carbon Block4item
  5. Carbon Wrapped11item
  6. Ceramic with Carbon9item
  7. Flat Bonded Pleated Fabric1 item
  8. Granular Activated Carbon61item
  9. Ion Exchange Resin12item
  10. Maifan Mineral Stone1 item
  11. Nylon Monofilament Mesh2item
  12. Permanganate Treated Zeolite1 item
  13. Phosphate Crystal1 item
  14. Pleated Fabric2item
  15. Pleated Polyester7item
  16. Polyester6item
  17. Polypropylene39item
  18. Scale Reduction media6item
  19. Semi-Permeable Membrane9item
  20. Sintered Ceramic5item
  21. Stainless Steel3item
Filter Bottom Type
  1. Open Hole1 item
Filter Top Type
  1. Open Hole1 item
Price
  1. $0.00 - $999.99371item
  2. $1,000.00 - $1,999.995item
Fitting Type
  1. FNPT12item
  2. FPT11item
  3. GHT2item
  4. MPT7item
  5. NPT26item
  6. Push In3item
  7. Quick-Change4item
  8. Quick Connect34item
Fitting Size (inches)
  1. 1/8 inch1 item
  2. 1/4 inch48item
  3. 3/8 inch12item
  4. 1/2 inch5item
  5. 3/4 inch16item
  6. 1 inch11item
  7. 1-1/16 inches2item
  8. 1-1/2 inches4item
  9. 2 inches2item
Advertised Size (in)
  1. 5 x 2-1/29item
  2. 7 x 2 2item
  3. 8 x 2-1/21 item
  4. 9-3/4 x 2-1/21 item
  5. 9-3/4 x 2-3/42item
  6. 10 x 210item
  7. 10 x 2-1/255item
  8. 10 x 3-1/21 item
  9. 10 x 4-1/214item
  10. 10 x 51 item
  11. 10-1/4 x 2-1/22item
  12. 10-5/16 x 2-1/81 item
  13. 10-3/4 x 2-3/41 item
  14. 12 x 2-1/26item
  15. 12-1/32 x 4-5/321 item
  16. 12-3/4 x 31 item
  17. 14 x 3-1/21 item
  18. 15 x 3-1/21 item
  19. 18-1/4 x 7-1/41 item
  20. 20 x 2-1/213item
  21. 20 x 4-1/222item
  22. 30 x 2-1/22item
  23. 31-3/4 x 7-1/41 item
  24. 40 x 2-1/21 item
Micron Rating (Nominal)
  1. 0⋅554item
  2. 125item
  3. 31 item
  4. 572item
  5. 1020item
  6. 151 item
  7. 206item
  8. 2513item
  9. 3010item
  10. 502item
  11. 1001 item
  12. 2001 item
  13. 4001 item
  14. 8001 item
Filter Diameter (inches)
  1. 8 - 8.991 item
Filter Length (inches)
  1. 21 - 23.991 item
Pool/Spa Manufacturer
  1. Tier11 item
Filter Life (months)
  1. 1 month4item
  2. 2 months7item
  3. 3 months26item
  4. 4 months1 item
  5. 5 months1 item
  6. 6 months142item
  7. 9 months1 item
  8. 12 months64item
  9. 24 months10item
  10. 36 months1 item
  11. 60 months5item
  12. 120 months4item
Filter Life (gallons)
  1. 0 - 1009item
  2. 100 - 2507item
  3. 250 - 50013item
  4. 500 - 1,00027item
  5. 1,000 - 2,50055item
  6. 2,500 - 5,00022item
  7. 5,000 - 10,00019item
  8. 10,000 - 13,0001 item
  9. 10,000 - 25,00023item
  10. 25,000 - 50,0007item
  11. 50,000 and up6item