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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.

108 Products found

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  1. PENTEK-CFB-30 Carbon Block Replacement Filter Cartridge

    PENTEK-CFB-30 Carbon Block Replacement Filter Cartridge

    Price $33.99 List Price Price $48.56 Save 30%
  2. 48,000 Grain Capacity Tier1 Water Softener with 20-Inch Pre-Filter Kit and 18 GPM UV Disinfection

    Tier1 Essential Series 48,000 Grain High Efficiency Digital Water Softener with Pre-Filtration System and UV Disinfection

    Price $1,145.99 List Price Price $1,636.99 Save 29%
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  3. 20 inch Big Polypropylene Filter Housing with Iron and Manganese Reduction Water Cartridge Kit by Tier1

    20 inch Big Polypropylene Filter Housing with Iron and Manganese Reduction Water Cartridge Kit by Tier1

    Price $109.99 List Price Price $157.99 Save 30%
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  4. 20 inch Big Polypropylene Filter Housing with Iron and Lead Reduction Water Cartridge Kit by Tier1

    20 inch Big Polypropylene Filter Housing with Iron and Lead Reduction Water Cartridge Kit by Tier1

    Price $124.99 List Price Price $178.99 Save 30%
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  5. 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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  6. 20 inch Tier1 Slim Polypropylene Filter Housing with 1 Micron Carbon and Polyphosphate Water Softening Cartridge Kit

    20 inch Slim Polypropylene Filter Housing with 1 Micron Carbon and Polyphosphate Water Softening Cartridge Kit by Tier1

    Price $72.99 List Price Price $104.99 Save 30%
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  7. 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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  8. 20 inch Slim PP Filter Housing with Pressure Release and Sediment Filter Kit by Tier1 (3/4 inch Inlet/Outlet)

    20 inch Slim Polypropylene Filter Housing with Pressure Release and Sediment Filter Kit by Tier1 (3/4 inch Inlet/Outlet)

    Price $69.99 List Price Price $99.99 Save 30%
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  9. 20 inch Slim PP Filter Housing with Pressure Release and Pleated Filter Kit by Tier1 (3/4 inch Inlet/Outlet)

    20 inch Slim Polypropylene Filter Housing with Pressure Release and Pleated Filter Kit by Tier1 (3/4 inch Inlet/Outlet)

    Price $74.99 List Price Price $107.99 Save 30%
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  10. 20 inch Slim PP Filter Housing with Pressure Release and Carbon Filter Kit by Tier1 (3/4 inch Inlet/Outlet)

    20 inch Slim Polypropylene Filter Housing with Pressure Release and Carbon Filter Kit by Tier1 (3/4 inch Inlet/Outlet)

    Price $73.99 List Price Price $105.99 Save 30%
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  11. 20 inch Big Polypropylene Filter Housing with Pressure Release and Sediment Filter Kit by Tier1 (Kit image)

    20 inch Big Polypropylene Filter Housing with Pressure Release and Sediment Filter Kit by Tier1 (1 inch Inlet/Outlet)

    Price $78.99 List Price Price $112.99 Save 30%
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  12. 20 inch Big Polypropylene Filter Housing with Pressure Release and Carbon Filter Kit by Tier1 (1 inch Inlet/Outlet)

    20 inch Big Polypropylene Filter Housing with Pressure Release and Carbon Filter Kit by Tier1 (1 inch Inlet/Outlet)

    Price $113.99 List Price Price $162.99 Save 30%
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108 Products found

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  1. Brand Pentek
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Shopping Options
Category
  1. Undersink Water Filters & Systems 21 item
  2. Inline Water Filters 6 item
  3. Reverse Osmosis Water Filter Replacement Cartridges and Kits 20 item
  4. Commercial Grade Water Filters & Systems 44 item
Primary Filter Media
  1. Activated Carbon Block 16 item
  2. Carbon Block 1 item
  3. Carbon Wrapped 5 item
  4. Granular Activated Carbon 12 item
  5. Hexametaphosphate Crystals 1 item
  6. Ion Exchange Resin 7 item
  7. Nylon Monofilament 1 item
  8. Nylon Monofilament Mesh 4 item
  9. Permanganate Treated Zeolite 1 item
  10. Phosphate Crystal 1 item
  11. Pleated Polyester 3 item
  12. Polyester 3 item
  13. Polypropylene 27 item
  14. Scale Reduction media 1 item
  15. Semi-Permeable Membrane 2 item
Price
  1. $0.00 - $999.99 106 item
  2. $1,000.00 and above 3 item
Fitting Type
  1. FPT 3 item
  2. MNPT 2 item
  3. MPT 2 item
  4. NPT 30 item
  5. Quick-Change 2 item
  6. Quick Connect 3 item
Fitting Size (inches)
  1. 1/4 inch 10 item
  2. 3/8 inch 6 item
  3. 1/2 inch 1 item
  4. 3/4 inch 10 item
  5. 1 inch 8 item
  6. 1-1/2 inches 2 item
  7. 2 inches 2 item
Advertised Size (in)
  1. 5 x 2-1/2 6 item
  2. 10 x 2-1/2 19 item
  3. 10 x 4-1/2 8 item
  4. 18 x 4 1 item
  5. 18-1/4 x 7-1/4 1 item
  6. 20 x 2-1/2 10 item
  7. 20 x 4-1/2 12 item
  8. 29 x 10 1 item
  9. 30 x 2-1/2 1 item
  10. 31-3/4 x 7-1/4 1 item
  11. 32 x 7 1 item
Micron Rating (Nominal)
  1. 0.5 6 item
  2. 1 7 item
  3. 5 26 item
  4. 10 8 item
  5. 20 2 item
  6. 25 8 item
  7. 30 4 item
  8. 50 4 item
  9. 100 5 item
  10. 200 2 item
  11. 400 1 item
  12. 800 1 item
Filter Life (months)
  1. 2 months 2 item
  2. 3 months 1 item
  3. 6 months 46 item
  4. 9 months 2 item
  5. 12 months 9 item
  6. 24 months 3 item
  7. 60 months 1 item
  8. 120 months 2 item
Filter Life (gallons)
  1. 100 - 250 2 item
  2. 250 - 500 1 item
  3. 500 - 1,000 4 item
  4. 1,000 - 2,500 9 item
  5. 2,500 - 5,000 4 item
  6. 5,000 - 10,000 1 item
  7. 10,000 - 25,000 6 item
  8. 25,000 - 50,000 4 item
  9. 50,000 and up 1 item