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. HF-150 Culligan Whole House Filter System
  2. 4WH-STDGR-F02 Filtrete Replacement Filter Cartridge (2-Pack)
  3. 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
  4. PX50-9-78 Purtrex Replacement Filter Cartridge

    PX50-9-78 Purtrex Replacement Water Filter

    Fits industry standard compact filtration system housings that use 2.5-inch x 10-inch replacement filters Learn More
    $5.09 MSRP:  $10.99
  5. GX01-9-78 Hytrex Replacement Filter Cartridge

    GX01-9-78 Hytrex Replacement Water Filter Cartridge

    Fits industry standard water filtration housings that use 2.5-inch x 10-inch filter cartridges Learn More
    $5.49 MSRP:  $8.61
  6. GX10-9-78 Hytrex Replacement Filter Cartridge

    GX10-9-78 Hytrex Replacement Water Filter Cartridge

    Fits industry standard filter housings that use 2.5-inch x 10-inch water filters Learn More
    $6.99 MSRP:  $8.61
  7. 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
  8. W9223022 Doulton Replacement Ceramic Filter

    W9223022 Doulton Ultracarb Replacement Ceramic Filter

    Fits most standard 2.5-inch by 10-inch filter housings Learn More
    $62.00 MSRP:  $82.65
  9. SCWH-5 WTR Culligan Water Filter Cartridge

    SCWH-5 WTR Culligan Water Filter Cartridge

    Fits into the HF-150A and HF-360A water filtration system housings Learn More
    $9.99 MSRP:  $10.99
  10. 655130-43/DFX-CB-10 Pentek Diamond Polyspun Carbon Block Replacement

    655130-43/DFX-CB-10 Pentek Diamond Polyspun Carbon Block Replacement

    Fits housings that take filters sized 10 x 2-1/2 Learn More
    $13.99 MSRP:  $18.99
  11. Pentek ECP20-10 Replacement Water Filter Cartridge

    ECP20-10 Pentek Replacement Filter Cartridge

    Fits most housings that accept 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $6.30 Per Filter

  12. Pentek P25-20 Whole House Replacement Sediment Filter Cartridge

    P25-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept standard 20-inch x 2.5-inch water filter cartridges Learn More

    As Low As $8.25 Per Filter

  13. Pentek P25 Whole House Replacement Sediment Filter Cartridge

    P25 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept standard 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $5.20 Per Filter

  14. P5 Pentek Whole House Replacement Sediment Filter Cartridge

    P5 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept standard 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $4.80 Per Filter

  15. PCC212 Pentek Replacement Filter Cartridge

    PCC212 Pentek Replacement Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $18.83 Per Filter

  16. Pentek PD-10-934 Whole House Water Filter Replacement Cartridge
  17. Pentek PD-25-934 Whole House Water Filter Replacement Cartridge

    PD-25-934 Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $5.25 Per Filter

  18. Pentek PS5-10C Whole House Replacement Sediment Water Filter Cartridge

    PS5-10C Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $6.83 Per Filter

  19. Pentek R30 Replacement Water Filter Cartridge

    Pentek R30 Sediment Water Filter Cartridge Replacement

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $8.27 Per Filter

  20. R50 Pentek Whole House Filter Replacement Cartridge

    R50 Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $7.20 Per Filter

  21. AP-GRMB-05PP-10UB Aquapure Whole House Filter Replacement by Tier1
  22. SDC-25-1005 Hydronix Whole House Filter Replacement by Tier1
  23. HAC-10-LR-W Harmsco Whole House Wilter Replacement by Tier1
  24. AP1001 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1

    AP1001 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More

    As Low As $0.00 Per Filter

  25. AP-GRMB-01PP-10UB 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1

    AP-GRMB-01PP-10UB 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More

    As Low As $0.00 Per Filter

Items 1 to 25 of 355 total

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