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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. 3M Aqua-Pure AP811-2 Whole House Water Filter

    AP811-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $60.99 Retail Price:  $66.69
  2. FXSVC GE SmartWater Undersink Filter Set

    FXSVC GE SmartWater Undersink Filter Set

    Fits any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $60.99 Retail Price:  $72.34
  3. CRFC-BB Pentek Chloramine Reduction Water Filter

    CRFC-BB Pentek Chloramine Reduction Water Filter

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
    $61.79 Retail Price:  $73.36
  4. 3M Aqua-Pure AP22 Under Sink Water Filter

    AP22 3M Aqua-Pure Replacement Undersink Water Filter Cartridge

    Fits 3M Aqua-Pure undersink water filtration systems Learn More
    $61.99 Retail Price:  $75.89
  5. CQE-RC-04051 Crystal Quest Arsenic Multi Replacement Filter Cartridge

    CQE-RC-04051 Crystal Quest Arsenic Multi Replacement Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $61.99 Retail Price:  $94.29
  6. 4WH-QS-F01 Filtrete Replacement Filter Cartridge

    4WH-QS-F01 3M Filtrete Replacement Water Filter

    Fits 3M Filtrete High Performance Whole House water filtration systems Learn More
    $61.99 Retail Price:  $82.79
  7. CQE-SP-00809 Crystal Quest Bath Ball Filter

    CQE-SP-00809 Crystal Quest Bath Ball Filter

    Hangs from your tub spigot and filters water as it flows through Learn More
    $61.99 Retail Price:  $73.59
  8. CFS517 Cuno Whole House Filter Replacement Cartridge

    CFS517 Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More

    Regular Price: $78.99

    Special Price: $62.05

  9. 1-40400-W Seychelle Radiological Water Pitcher Filter Replacement

    1-40400-W Seychelle Radiological Water Pitcher Filter

    Fits the Seychelle Radiological Water Pitcher Learn More
    $62.95 Retail Price:  $74.69
  10. SWC1350-C Cuno Whole House Filter Replacement Cartridge

    SWC1350-C Cuno Whole House Water Filter Cartridge

    Fits the Cuno Food Service CFS6090-C and CFS6135-C Water Treatment Systems Learn More
    $62.99 Retail Price:  $81.64
  11. 7CB5 Everpure Replacement Filter Cartridge

    7CB5 Everpure Replacement Filter Cartridge

    Fits Everpure EV9275, EV9328, EV9337, and EV9797 systems Learn More
    $62.99 Retail Price:  $75.89
  12. SFH5-CM Sprite ShowerFalls Filtered Shower Extension - Chrome - 1

    SFH5-CM Sprite ShowerFalls Filtered Shower Extension (Chrome)

    Attaches to residential showers and baths Learn More
  13. 1-100-F Rusco Spin-Down Water Filter System

    1-100-F Rusco Spin-Down Water Filter System

    100 mesh, 152 micron and built to fit a one-inch pipe Learn More
    $62.99 Retail Price:  $74.74
  14. 1-1000-F Rusco Spin-Down Water Filter System

    1-1000-F Rusco Spin-Down Water Filter System

    1000 mesh, 15 micron and built for a one-inch pipe Learn More
    $62.99 Retail Price:  $74.74
  15. 3/4-30-F Rusco Polyester Screened Spin-Down Water Filtration System

    3/4-30-F Rusco Polyester Screened Spin-Down Water Filtration System

    30 mesh, 533 micron and built to fit a .75-inch pipe Learn More
    $62.99 Retail Price:  $74.74
  16. FRSS-12 Sterilight 12 GPM 1-inch Flow Restrictor
  17. FRSS-20 Sterilight 20 GPM 1-inch Flow Restrictor
  18. FLOPLUS-20BB Pentek Replacement Filter Cartridge

    FLOPLUS-20BB Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 20-inch x 4.5-inch water filter cartridges Learn More
    $63.99 Retail Price:  $80.49
  19. 47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter

    47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter

    Fits 3M Cuno Water Factory FaucetMATE FM DWS 1500 one-stage system Learn More
    $63.99 Retail Price:  $77.61
  20. 41400004 Hydrotech TFC Reverse Osmosis Membrane

    41400004 Hydrotech TFC Reverse Osmosis Membrane

    Fits Hydrotech Models from the 1240 Series, 1240 E Series,1240 M Series, 1240 Pro Series, 3VTFC50G, 4VTFC50G, 4VTFC50GPB, F-HT-50, F-HTF-50 and other select models Learn More
    $63.99 Retail Price:  $74.74
  21. 158319 Pentek Slim Line High Temp Filter Housing - Black

    158319 Pentek Slim Line High Temp Filter Housing - Black

    Fits standard 1/2-inch water lines Learn More
    $63.99 Retail Price:  $66.34
  22. 602976 Trojan UVMAX J Quartz UV Lamp Sleeve

    602976 Trojan UVMAX J Quartz UV Lamp Sleeve

    Fits Trojan UVMAX J, J Plus and Pro30 UV disinfection systems Learn More
  23. FXS-CM-S3 Sprite ShowerUp Shower Filter System and Extension Arm

    FXS-CM-S3 Sprite ShowerUp Shower Filter System and Extension Arm

    Attaches easily onto most residential showers and baths Learn More

    Regular Price: $82.99

    Special Price: $64.05

  24. 3M Aqua-Pure AP410 Water Filter Cartridges

    AP410 3M Aqua-Pure Water Filter Cartridge Set (2-Pack)

    Fits the 3M Aqua-Pure AP400 and AP400SS Point of Use water filtration systems Learn More
    $64.99 Retail Price:  $71.29
  25. CFS8720-S Cuno Whole House Filter Replacement Cartridge

    CFS8720-S Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More
    $64.99

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