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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.

114 Products found

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  1. Tier1 RO5 Replacement Filter Bundle 5-Pack

    Tier1 RO5 Replacement Filter Bundle 5-Pack

    Price $1,000.00
    Free Shipping
  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 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%
    Free Shipping
  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. RO-132-W14 White 3.2 Gallon Reverse Osmosis System Bladder Tank by Tier1 (With Stand)

    RO-132-W14 White 3.2 Gallon Capacity Reverse Osmosis System Bladder Tank by Tier1

    Price $68.99 List Price Price $98.99 Save 30%
    Free Shipping
  6. P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Price $6.99 List Price Price $9.99 Save 30%
  7. A101 Aries Undersink Comparable Filter Replacement Cartridge by Tier1

    A101 Aries Undersink Comparable Filter Replacement Cartridge by Tier1

    Price $46.99 List Price Price $66.99 Save 29%
    Free Shipping
  8. Tier1 Essential Series 48,000 Grain High Efficiency Digital Water Softener with Neoprene Sleeve

    Tier1 Essential Series 48,000 Grain High Efficiency Digital Water Softener with Neoprene Sleeve

    Price $599.99 List Price Price $856.99 Save 29%
    Free Shipping
  9. GXRTQR GE SmartWater Inline Comparable Replacement Cartridge by Tier1

    GXRTQR GE SmartWater Inline Comparable Replacement Cartridge by Tier1

    Price $11.99 List Price Price $16.99 Save 29%
  10. RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    Price $46.99 List Price Price $66.99 Save 29%
    Free Shipping
  11. P5 Pentek Comparable Whole House Replacement Sediment Filter Cartridge by Tier1

    P5 Pentek Comparable Whole House Replacement Sediment Filter Cartridge by Tier1

    Price $8.99 List Price Price $12.99 Save 30%
  12. FQSVF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1

    FQSVF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1

    Price $32.99 List Price Price $46.99 Save 29%

114 Products found

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  1. Brand Tier1
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Shopping Options
Category
  1. Undersink Water Filters & Systems 14 item
  2. Inline Water Filters 5 item
  3. Reverse Osmosis Water Filter Replacement Cartridges and Kits 24 item
  4. Commercial Grade Water Filters & Systems 1 item
  5. Countertop Water Filter Systems 2 item
  6. Water Filter Pitchers & Dispensers 4 item
  7. Shower Water Filters & Filter Systems 2 item
  8. Household Filters 6 item
Primary Filter Media
  1. Activated Carbon Block 27 item
  2. Activated Carbon w Ion Exchange Resin 1 item
  3. Carbon Block 4 item
  4. Granular Activated Carbon 18 item
  5. Ion Exchange Resin 2 item
  6. Pleated Fabric 1 item
  7. Pleated Polyester 6 item
  8. Polypropylene 13 item
  9. Scale Reduction media 3 item
  10. Semi-Permeable Membrane 1 item
Price
  1. $0.00 - $999.99 109 item
  2. $1,000.00 and above 8 item
Fitting Type
  1. FNPT 1 item
  2. FPT 8 item
  3. MPT 8 item
  4. NPT 17 item
  5. Quick-Change 3 item
  6. Quick Connect 8 item
Fitting Size (inches)
  1. 1/4 inch 9 item
  2. 3/8 inch 4 item
  3. 1/2 inch 2 item
  4. 3/4 inch 18 item
  5. 1 inch 8 item
Advertised Size (in)
  1. 6 x 3 2 item
  2. 8 x 2-1/2 3 item
  3. 10 x 2 1 item
  4. 10 x 2-1/2 14 item
  5. 10 x 4-1/2 8 item
  6. 10 x 5 1 item
  7. 12 x 2-1/2 1 item
  8. 20 x 2-1/2 12 item
  9. 20 x 4-1/2 17 item
  10. 30 x 2-1/2 1 item
  11. 40 x 2-1/2 1 item
Micron Rating (Nominal)
  1. 0⋅1 2 item
  2. 0.5 3 item
  3. 1 13 item
  4. 5 32 item
  5. 10 6 item
  6. 20 1 item
  7. 25 3 item
  8. 30 4 item
Filter Diameter (inches)
  1. 8 - 9 1 item
Filter Length (inches)
  1. 21 - 24 1 item
Pool/Spa Manufacturer
  1. Tier1 1 item
Filter Life (months)
  1. 1 month 1 item
  2. 2 months 5 item
  3. 3 months 2 item
  4. 6 months 63 item
  5. 12 months 7 item
  6. 24 months 2 item
  7. 36 months 2 item
  8. 120 months 4 item
Filter Life (gallons)
  1. 0 - 100 3 item
  2. 250 - 500 8 item
  3. 500 - 1,000 5 item
  4. 1,000 - 2,500 16 item
  5. 2,500 - 5,000 3 item
  6. 5,000 - 10,000 8 item
  7. 10,000 - 13,000 1 item
  8. 10,000 - 25,000 13 item
  9. 25,000 - 50,000 4 item
  10. 50,000 and up 3 item