Free Shipping on Orders Over $39* | Free Returns | No Worries Guarantee | Contact Us
Search
My Cart
  • Home
  • Water Filters

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.

124 Products found

Set Descending Direction
Page
View as Grid List
  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
  3. Everpure H-300 Comparable Filter System by Tier1

    Everpure H-300 Comparable Filter System by Tier1

    Price $93.99 List Price Price $134.99 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. 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%
  6. 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
    Free Shipping
  7. 48,000 Grain Capacity Tier1 Water Softener and 5 Stage Reverse Osmosis Drinking Water Filter System Kit

    Essential Series 48,000 Grain Water Softener with Under Sink Reverse Osmosis System + Reusable Glass Water Bottles

    Price $609.99 List Price Price $949.99 Save 35%
    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
    Free Shipping
  9. 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%
  10. RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    Price $44.99 List Price Price $64.99 Save 30%
    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 $5.99 List Price Price $8.99 Save 33%
  12. FQSVF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1

    FQSVF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1

    Price $25.99 List Price Price $37.99 Save 31%

124 Products found

Set Descending Direction
Page
View as Grid List
Shop By
Now Shopping by
  1. Brand Tier1
Clear All
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 22 item
  4. Commercial Grade Water Filters & Systems 1 item
  5. Countertop Water Filter Systems 3 item
  6. Water Filter Pitchers & Dispensers 4 item
  7. Shower Water Filters & Filter Systems 3 item
  8. Household Filters 8 item
Primary Filter Media
  1. Activated Carbon Block 26 item
  2. Activated Carbon w Ion Exchange Resin 1 item
  3. Carbon Block 3 item
  4. Granular Activated Carbon 22 item
  5. Ion Exchange Resin 5 item
  6. Pleated Fabric 1 item
  7. Pleated Polyester 6 item
  8. Polypropylene 17 item
  9. Scale Reduction media 4 item
  10. Semi-Permeable Membrane 1 item
Price
  1. $0.00 - $999.99 115 item
  2. $1,000.00 and above 12 item
Fitting Type
  1. FNPT 1 item
  2. FPT 14 item
  3. MNPT 3 item
  4. MPT 12 item
  5. NPT 18 item
  6. Quick-Change 3 item
  7. Quick Connect 8 item
Fitting Size (inches)
  1. 1/4 inch 8 item
  2. 3/8 inch 4 item
  3. 1/2 inch 3 item
  4. 3/4 inch 24 item
  5. 1 inch 8 item
Advertised Size (in)
  1. 6 x 3 2 item
  2. 8 x 2-1/2 4 item
  3. 10 x 2 1 item
  4. 10 x 2-1/2 14 item
  5. 10 x 4-1/2 9 item
  6. 10 x 5 1 item
  7. 12 x 2-1/2 1 item
  8. 20 x 2-1/2 13 item
  9. 20 x 4-1/2 21 item
  10. 30 x 2-1/2 2 item
  11. 40 x 2-1/2 2 item
Micron Rating (Nominal)
  1. 0⋅1 2 item
  2. 0.5 3 item
  3. 1 13 item
  4. 5 35 item
  5. 10 6 item
  6. 20 1 item
  7. 25 4 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 6 item
  3. 3 months 2 item
  4. 6 months 66 item
  5. 12 months 10 item
  6. 24 months 2 item
  7. 36 months 2 item
  8. 120 months 7 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 15 item
  5. 2,500 - 5,000 3 item
  6. 5,000 - 10,000 8 item
  7. 10,000 - 13,000 2 item
  8. 10,000 - 25,000 13 item
  9. 25,000 - 50,000 4 item
  10. 50,000 and up 3 item