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Water Filtration Systems & 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.

18 Item(s)

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  1. F8-WHITE Instapure Ultra Faucet Filter System - White

    F8-WHITE Instapure Ultra Faucet Filter System - White

    Fits most standard kitchen water faucets Learn More
    $28.99 Retail Price:  $31.04
  2. FM-15A Culligan Level 3 On-Tap Faucet Filter System

    FM-15A Culligan Level 3 On-Tap Faucet Filter System

    Fits any standard faucet Learn More
    $22.99 Retail Price:  $28.51
  3. FM-15RA Culligan Level 3 Faucet Filter Replacement Cartridge

    FM-15RA Culligan Level 3 Faucet Filter Replacement Cartridge

    Fits Culligan FM-15 and FM-15A faucet mounted water filter systems Learn More
    $13.99 Retail Price:  $19.54
  4. FQSVF GE SmartWater Undersink Filter Set (packaging)

    FQSVF GE SmartWater Undersink Filter Set

    Fits GE SmartWater undersink filter systems Learn More
    $56.99
  5. F5-CHROME Instapure Complete Faucet Filter System - Chrome

    F5-CHROME Instapure Complete Faucet Filter System - Chrome

    Fits most standard kitchen water faucets Learn More
    $21.99 Retail Price:  $27.59
  6. F5-WHITE Instapure Complete Faucet Filter System - White

    F5-WHITE Instapure Complete Faucet Filter System - White

    Fits most standard kitchen water faucets Learn More
    $16.99 Retail Price:  $21.84
  7. F8-CHROME Instapure Ultra Faucet Filter System - Chrome

    F8-CHROME Instapure Ultra Faucet Filter System - Chrome

    Fits most standard kitchen water faucets Learn More
    $30.99 Retail Price:  $33.34
  8. R5-1PK Instapure Complete Faucet Filter Replacement Cartridge

    R5-1PK Instapure Complete Faucet Filter Replacement Cartridge

    Fits the Instapure F5 Faucet Water Filter System Learn More
    $16.99 Retail Price:  $17.93
  9. R5-2PK Instapure Complete Faucet Filter Replacement Cartridge (2-Pack)

    R5-2PK Instapure Complete Faucet Filter Replacement Cartridge (2-Pack)

    Fits the Instapure F5 Faucet Water Filter System Learn More
    $23.99 Retail Price:  $25.29
  10. R7-1PK Instapure CompletePlus Faucet Filter Replacement Cartridge

    R7-1PK Instapure CompletePlus Faucet Filter Replacement Cartridge

    Fits the Instapure F7 Faucet Water Filter System Learn More
    $15.99 Retail Price:  $21.61
  11. R8-1PK-CHROME Instapure Ultra Faucet Filter Replacement Cartridge - Chrome

    R8-1PK-CHROME Instapure Ultra Faucet Filter Replacement Cartridge - Chrome

    Fits the Instapure F8 Faucet Water Filter System Learn More
    $21.99 Retail Price:  $22.76
  12. R8-1PK-WHITE Instapure Ultra Faucet Filter Replacement Cartridge - White

    R8-1PK-WHITE Instapure Ultra Faucet Filter Replacement Cartridge - White

    Fits the Instapure F8 Faucet Water Filter System Learn More
    $18.99 Retail Price:  $24.02
  13. R5 Instapure Complete Faucet Filter Replacement Cartridge (4-Pack)

    R5 Instapure Complete Faucet Filter Replacement Cartridge (4-Pack)

    Fits the Instapure F5 Faucet Water Filter System Learn More

    (Retail Price: $54.04 ) $44.99

  14. R7 Instapure CompletePlus Faucet Filter Replacement Cartridge (2-Pack)
  15. R7 Instapure CompletePlus Faucet Filter Replacement Cartridge (4-Pack)

    R7 Instapure CompletePlus Faucet Filter Replacement Cartridge (4-Pack)

    Fits the Instapure F7 Faucet Water Filter System Learn More

    (Retail Price: $59.79 ) $49.99

  16. R8 Instapure Ultra Faucet Filter Replacement Cartridge (2-Pack) - Chrome

    R8 Instapure Ultra Faucet Filter Replacement Cartridge (2-Pack) - Chrome

    Fits the Instapure F8 Faucet Water Filter System Learn More

    (Retail Price: $42.54 ) $34.99

  17. R8 Instapure Ultra Faucet Filter Replacement Cartridge (2-Pack) - White

    R8 Instapure Ultra Faucet Filter Replacement Cartridge (2-Pack) - White

    Fits the Instapure F8 Faucet Water Filter System Learn More

    (Retail Price: $41.39 ) $33.99

  18. R8 Instapure Ultra Faucet Filter Replacement Cartridge (4-Pack) - White

    R8 Instapure Ultra Faucet Filter Replacement Cartridge (4-Pack) - White

    Fits the Instapure F8 Faucet Water Filter System Learn More

    (Retail Price: $71.29 ) $59.99

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