Discount Water Filters and Air Filters at Discount Filter Store.com

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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. W30PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W30PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $16.99 MSRP:  $18.04
  2. W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge

    W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge

    Fits American Plumber W10-PR and W15-PR and most other heavy duty water filter housings Learn More
    $23.99 MSRP:  $27.34
  3. W30W American Plumber Whole House Sediment Water Filter Cartridge (2-Pack)

    W30W American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $12.99 MSRP:  $16.34
  4. PR-1U Culligan Universal Water Pitcher Replacement Cartridge

    PR-1U Culligan Universal Water Filter Pitcher Replacement Cartridge

    Fits Culligan PIT-1, OP-1, GP-1, WP-1 and most Brita and PUR brand water filter pitchers Learn More
    $13.39 MSRP:  $19.99
  5. PR-3 Culligan Water Pitcher Replacement Cartridge (3-Pack)

    PR-3 Culligan Water Pitcher Replacement Cartridge (3-Pack)

    Fits Culligan PIT-1, OP-1, GP-1, WP-1, WFR1, and WFJ2 water pitchers Learn More
    $23.79 MSRP:  $33.99
  6. FXHSC GE SmartWater Whole House Filter Replacement Cartridge

    FXHSC GE SmartWater Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More
    $21.99 MSRP:  $29.95
  7. FXUSC GE SmartWater Whole House Filter Replacement

    FXUSC GE SmartWater Whole House Filter Replacement Cartridge (2-Pack)

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $16.99
  8. FXSCH GE Shower Replacement Filter Cartridge

    FXSCH GE Shower Replacement Filter Cartridge

    Fits the GE GXSM01HWW shower filter system Learn More
    $15.99 MSRP:  $27.99
  9. GXRTDR GE SmartWater Inline Filter Cartridge

    GXRTDR GE SmartWater Inline Filter Cartridge

    Fits any 1/4-inch plastic or copper water line Learn More
    $20.99 MSRP:  $30.99 As low as: $20.99
  10. PX30-20 Purtrex Replacement Filter Cartridge

    PX30-20 Purtrex Replacement Water Filter Cartridge

    For filtration system housings that use 2.5-inch x 20-inch filters Learn More
    $6.89 MSRP:  $9.19
  11. PX30-9-78 Purtrex Replacement Filter Cartridge

    PX30-9-78 Purtrex Replacement Water Filter Cartridge

    Fits filtration housings that use 2.5-inch x 10-inch replacement water filters Learn More
    $4.09 MSRP:  $9.99
  12. WHKF-WHPL Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)

    WHKF-WHPL Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)

    Fits standard 2-1/2 inch by 10 inch filter housings Learn More
    $10.99
  13. GX30-9-78 Hytrex Replacement Filter Cartridge

    GX30-9-78 Hytrex Water Filter Cartridge

    Fits industry standard filtration system housings that use 2.5-inch x 10-inch water filters Learn More
    $5.99 MSRP:  $8.61
  14. BF7-S-05 OmniFilter Undersink Filter System

    BF7-S-05 OmniFilter Undersink Water Filtration System

    Fits standard 1-inch NPS supply threads. Uses 4.5x10 inch replacement filter cartridges. Learn More
    $69.99 MSRP:  $82.79
  15. SF200-S2-S06 OmniFilter Shower Filter System

    SF200-S2-S06 OmniFilter Shower Filter System

    Fits easily onto all standard shower heads Learn More
    $26.99 MSRP:  $33.34
  16. BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 4 1/2-inch filter cartridges Learn More
    $89.99 MSRP:  $144.23
  17. 1-500ST-F Rusco Sediment Trapper System

    1-500ST-F Rusco Sediment Trapper System

    500 mesh, 30 micron and built to fit a one-inch pipe Learn More
    $79.99 MSRP:  $94.29
  18. FS-1-500 Rusco Spin-Down Replacement Water Filter

    FS-1-500 Rusco Spin-Down Replacement Water Filter

    500 mesh, 30 micron and built to fit into a one-inch pipe Learn More
    $13.99 MSRP:  $20.69
  19. SPC-45-2030 Hydronix Pleated Sediment Water Filter

    SPC-45-2030 Hydronix Pleated Sediment Water Filter

    20 inches by 4.5 inches, 30 micron. Fits into systems that use Liquatec SPF-45-2030, Pentek 155430-43 and Pentek R30-20BB water filters Learn More
    $24.99 MSRP:  $32.99
  20. 3/4-500-F Rusco Polyester Screened Spin-Down Water Filtration System

    3/4-500-F Rusco Polyester Screened Spin-Down Water Filtration System

    500 mesh, 30 micron and built to fit a .75-inch pipe Learn More
    $62.89 MSRP:  $74.62
  21. 3/4-500ST-F Rusco Polyester Screen Sediment Trapper System

    3/4-500ST-F Rusco Polyester Screen Sediment Trapper System

    500 mesh, 30 micron and built to fit a .75-inch pipe Learn More
    $81.99 MSRP:  $96.59
  22. FS-1-500ST Rusco Replacement Polyester Sediment Trapper Filter

    FS-1-500ST Rusco Replacement Polyester Sediment Trapper Filter

    500 mesh, 30 micron and built to fit a 1-inch pipe Learn More
    $14.99 MSRP:  $21.84
  23. 1-500-F Rusco Polyester Screened Spin-Down Water Filtration System

    1-500-F Rusco Polyester Screened Spin-Down Water Filtration System

    500 mesh, 30 micron and built to fit a one inch pipe Learn More
    $57.99 MSRP:  $68.99
  24. SPC-25-2030 Hydronix Pleated Sediment Water Filter

    SPC-25-2030 Hydronix Pleated Sediment Water Filter

    30 micron filter, sized 20 x 2.5 inches Learn More
    $16.99 MSRP:  $23.99
  25. SWC-25-2030 Hydronix String Wound Sediment Water Filter (30 micron)

    SWC-25-2030 Hydronix String Wound Sediment Water Filter (30 micron)

    Fits into filtration system housing that accepts 20 x 2.5 inch water filters Learn More
    $13.99 MSRP:  $17.24

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