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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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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.

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  1. F2-WHITE Instapure Essentials Faucet Filter System - White

    F2-WHITE Instapure Essentials Faucet Filter System - White

    Fits most standard kitchen water faucets Learn More
    $12.99 Retail Price:  $17.24
  2. 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
  3. WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter

    WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter

    Fits all DuPont faucet mounts Learn More
    $14.99 Retail Price:  $17.34
  4. WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)
  5. 42645 Brita AquaView AVFF-100 Faucet Filter System - White
  6. 42201 Brita On-Tap FF-100 Faucet Filter System - White

    42201 Brita On-Tap FF-100 Faucet Filter System - White

    Fits any standard faucet Learn More
    $32.99 Retail Price:  $42.54
  7. 42401 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White

    42401 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White

    Fits all Brita "On-Tap" faucet mounted water filter systems (regardless of finish) Learn More
    $23.99 Retail Price:  $25.29
  8. 42402 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White (2-Pack)

    42402 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White (2-Pack)

    Fits all Brita "On-Tap" faucet mounted water filter systems (regardless of finish) Learn More
    $32.99 Retail Price:  $42.54
  9. FM-3333B PUR 2-Stage Vertical Faucet Filter System - White
  10. FM-3400B PUR 3-Stage Vertical Faucet Filter System - White
  11. FM-9600B PUR 3-Stage Horizontal Faucet Filter System - White
  12. RF-3375 PUR 2-Stage Vertical Faucet Filter Replacement Cartridge - White

    RF-3375 PUR 2-Stage Vertical Faucet Filter Replacement Cartridge - White

    Fits all PUR faucet mount systems including Flavor Options Learn More
    $13.99 Retail Price:  $25.29
  13.  RF-3375-2-PACK PUR 2-Stage Vertical Faucet Filter Replacement Cartridge - White (2-Pack)

    RF-3375-2-PACK PUR 2-Stage Vertical Faucet Filter Replacement Cartridge - White (2-Pack)

    Fits all PUR faucet mount systems including Flavor Options Learn More
    $22.99 Retail Price:  $26.44
  14. 1-40100-W Seychelle Family Water Pitcher Regular Replacement Filter

    1-40100-W Seychelle Water Pitcher Replacement Filter

    Fits the Seychelle Family Water Pitcher Learn More
    $31.96
  15. 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
  16. 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
  17. WHCF-R-PLUS Whirlpool Inline UltraEase Plus Water Filter

    Whirlpool UltraEase WHKF-R-PLUS / WHCF-R-PLUS Inline Water Filter

    Fits Whirlpool WHCF-IMTOS, WHCF-IMPLUS and WHKH-IMPLUS water filtration systems Learn More
  18. FM-25R Culligan Replacement Faucet Filter

    FM-25R Culligan Replacement Faucet Filter

    Fits onto Culligan FM-25 water faucet filtration systems Learn More
    $12.99 Retail Price:  $24.99
  19. F1 OmniFilter Faucet Filter

    F1 OmniFilter Faucet Filter

    Fits most standard water faucets Learn More

    Regular Price: $15.99

    Special Price: $8.05

  20. 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

  21. 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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