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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.

129 Products found

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  1. Tier1 RO5 Replacement Filter Bundle 5-Pack

    Tier1 RO5 Replacement Filter Bundle 5-Pack

    Price $61.95
  2. Tier1 RO5 Replacement Filter Bundle 4-Pack

    Tier1 RO5 Replacement Filter Bundle 4-Pack

    Price $35.99 List Price Price $50.99 Save 29%
  3. Replacement Media for Tier1Essential Certified Series Whole House Water Filtration System For Chlorine, Taste & Odor Reduction

    Replacement Media for Tier1Essential Certified Series Whole House Water Filtration System For Chlorine, Taste & Odor Reduction

    Price $89.99 List Price Price $128.99 Save 30%
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  4. Alkaline Water Pitcher and Alkaline Pitcher Replacement Filters (3-Pack) Kit by Tier1

    Alkaline Water Pitcher and Alkaline Pitcher Replacement Filters (3-Pack) Kit by Tier1

    Price $36.99 List Price Price $52.99 Save 30%
  5. Pioneer Lead Reduction Whole House System Housing and Filter Kit

    Pioneer Whole House Lead Reduction Housing and Filter Kit

    Price $1,581.99 List Price Price $2,259.99 Save 30%
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  6. GXRTQR GE SmartWater Inline Comparable Replacement Cartridge by Tier1

    GXRTQR GE SmartWater Inline Comparable Replacement Cartridge by Tier1

    Price $9.99 List Price Price $14.99 Save 33%
  7. EP-10 Pentek Comparable Whole House Water Filter by Tier1

    EP-10 Pentek Comparable Whole House Water Filter by Tier1

    Price $12.99 List Price Price $18.99 Save 31%
  8. F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    InSinkErator F-201R Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    Price $92.99 List Price Price $132.99 Save 30%
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  9. Pioneer Whole House Lead Reduction Filter

    Pioneer Whole House Lead Reduction Filter

    Price $513.37 List Price Price $732.99 Save 29%
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  10. 20 inch Slim Polypropylene Filter Housing with 5 Micron Carbon and Polyphosphate Water Softening Cartridge Kit by Tier1

    20 inch Slim Polypropylene Filter Housing with 5 Micron Carbon and Polyphosphate Water Softening Cartridge Kit by Tier1

    Price $70.99 List Price Price $101.99 Save 30%
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  11. 20 inch Slim Polypropylene Filter Housing with 10 Micron Carbon and Anti-scale Water Softening Cartridge Kit by Tier1

    20 inch Slim Polypropylene Filter Housing with 10 Micron Carbon and Anti-scale Water Softening Cartridge Kit by Tier1

    Price $81.99 List Price Price $117.99 Save 30%
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  12. 10 Micron Carbon and Anti-scale Water Softening Replacement Cartridge by Tier1

    10 Micron Carbon and Anti-scale Water Softening Replacement Cartridge by Tier1

    Price $28.99 List Price Price $41.99 Save 30%

129 Products found

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Category
  1. Undersink Water Filters & Systems 22 item
  2. Inline Water Filters 13 item
  3. Reverse Osmosis Water Filter Replacement Cartridges and Kits 19 item
  4. Commercial Grade Water Filters & Systems 49 item
  5. Countertop Water Filter Systems 1 item
  6. Water Filter Pitchers & Dispensers 3 item
  7. Household Filters 7 item
Brand
  1. Aqua Flo 1 item
  2. BevGuard 5 item
  3. Brondell 1 item
  4. Culligan 7 item
  5. Cuno 2 item
  6. DuPont 5 item
  7. Everpure 8 item
  8. Filtrete 2 item
  9. GE 2 item
  10. Halsey Taylor 1 item
  11. Harmsco 1 item
  12. Hydrologic 3 item
  13. Hydronix 2 item
  14. Hydrotech 4 item
  15. Insinkerator 1 item
  16. KX Matrikx 1 item
  17. Manitowoc 1 item
  18. GE Merlin 1 item
  19. Omnipure 35 item
  20. Pentek 16 item
  21. Pioneer 2 item
  22. PuROLine 1 item
  23. Tier1 27 item
  24. Viqua 1 item
  25. Water Sentinel 1 item
  26. Watts 3 item
  27. Whirlpool 3 item
Price
  1. $0.00 - $999.99 128 item
  2. $1,000.00 and above 1 item
Fitting Type
  1. FPT 8 item
  2. MPT 1 item
  3. NPT 5 item
  4. Quick-Change 1 item
  5. Quick Connect 12 item
Fitting Size (inches)
  1. 1/4 inch 17 item
  2. 3/8 inch 4 item
  3. 3/4 inch 3 item
  4. 1 inch 2 item
Advertised Size (in)
  1. 5 x 2-1/2 1 item
  2. 6 x 2-1/2 1 item
  3. 6 x 3 2 item
  4. 10 x 2-1/2 24 item
  5. 10 x 3-1/2 2 item
  6. 10 x 4-1/2 6 item
  7. 10 x 5 1 item
  8. 12 x 2-1/2 10 item
  9. 14 x 2-1/2 4 item
  10. 15 x 3-1/2 2 item
  11. 20 x 2-1/2 7 item
  12. 20 x 4-1/2 5 item
Micron Rating (Nominal)
  1. 0⋅1 2 item
  2. 0.5 24 item
  3. 1 40 item
  4. 5 30 item
  5. 10 13 item
  6. 20 2 item
Filter Life (months)
  1. 2 months 6 item
  2. 3 months 3 item
  3. 5 months 1 item
  4. 6 months 77 item
  5. 9 months 1 item
  6. 12 months 31 item
  7. 24 months 1 item
Filter Life (gallons)
  1. 0 - 100 1 item
  2. 100 - 250 6 item
  3. 250 - 500 9 item
  4. 500 - 1,000 7 item
  5. 1,000 - 2,500 30 item
  6. 2,500 - 5,000 26 item
  7. 5,000 - 10,000 5 item
  8. 10,000 - 25,000 27 item
  9. 25,000 - 50,000 2 item
  10. 50,000 and up 4 item