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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. 22105 Hydrologic SmallBoy Sediment Filter

    22105 Hydrologic SmallBoy Sediment Filter

    Fits 10 inch by 2.5 inch filtration system housings Learn More
    $8.99 MSRP:  $12.06
  2. 22140 Hydrologic TallBoy Sediment Filter

    22140 Hydrologic TallBoy Sediment Filter

    Fits the HydroLogic TallBoy Filter housing and other filtration system housings that use 20 inch by 2.5 inch replacement filters Learn More
    $9.99 MSRP:  $13.79
  3. 31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    Built with a two-stage filtration and protected by a one year limited warranty Learn More
    $153.99 MSRP:  $183.95
  4. PS1-20C Pentek Sediment Water Filter

    PS1-20C Pentek Sediment Water Filter

    Fits standard filter housings using 20 x 2.5-inch filters Learn More
    $7.99 MSRP:  $13.55
  5. PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 10 x 2.5-inch filters Learn More
    $3.99 MSRP:  $6.99
  6. SDC-45-2050 Hydronix Comparable Sediment Water Filter by Tier1

    SDC-45-2050 Hydronix Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 20 x 4.5-inch filters Learn More
  7. 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  8. AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1
  9. FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  10. WHKF-DWHB Whirlpool Comparable Whole House Sediment Water Filter by Tier1

    WHKF-DWHB Whirlpool Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More
    $18.99
  11. CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  12. CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  13. CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1

    CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
  14. PD-25-934 Pentek Comparable Whole House Water Filter by Tier1
  15. RS2SS OmniFilter Comparable Whole House Water Filter by Tier1

    RS2SS OmniFilter Comparable Whole House Water Filter by Tier1

    Fits most standard 10 x 2.5-inch filter housings Learn More
  16. TIER1-DGD1-20BB Whole House Sediment Water Filter

    DGD-2501-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 20 x 5-inch housings Learn More
    $20.99 MSRP:  $24.34
  17. Hydronix HF2-10CLWH14 Clear 10 inch Filter Housing

    Hydronix HF2-10CLWH14 Clear 10 inch Filter Housing

    Receives any standard 10 inch by 2.5 inch filter cartridge Learn More
    $16.99 MSRP:  $17.24
  18. AP-GRMB-05PP-20UB Whole House Replacement Filter by 3M Aqua-Pure

    3M Aqua-Pure AP-GRMB-05PP-20 Whole House Water Filter Replacement

    Fits most standard 20-inch x 2.5-inch housings Learn More
    $11.99 MSRP:  $14.34
  19. AP-GRMB-10PP-20UB Whole House Replacement Cartridge by 3M Aqua-Pure

    AP-GRMB-10PP-20UB Whole House Replacement Filter by 3M Aqua-Pure

    Fits most standard 20-inch x 2.5-inch housings Learn More
    $11.99 MSRP:  $14.34
  20. AP-GRMB-20PP-20UB Whole House Water Filter Replacement Cartridge

    3M Aqua-Pure AP-GRMB-20PP-20 Whole House Water Filter Replacement

    Fits most standard 20 inch x 2 1/2 inch housings Learn More
    $11.99 MSRP:  $14.34
  21. AP-GRMB-10PP-10UB Whole House Water Filter Replacement Cartridge

    3M Aqua-Pure AP-GRMB-10PP-10 Whole House Water Filter Replacement

    Fits most standard 10 inch x 2 1/2 inch housings Learn More
    $7.99 MSRP:  $10.34
  22. AP-GRMB-20PP-10UB Whole House Water Filter Cartridge by 3M Aqua-Pure

    AP-GRMB-20PP-10UB Whole House Replacement Filter by 3M Aqua-Pure

    Fits most standard 10-inch x 2.5-inch housings Learn More
    $7.99 MSRP:  $10.34
  23. AP-GRMB-50PP-20UB Whole House Water Filter Replacement Cartridge

    3M Aqua-Pure AP-GRMB-50PP-20UB Whole House Water Filter Replacement

    Fits most standard 20 inch x 2 1/2 inch housings Learn More
    $11.99 MSRP:  $14.34
  24. CMB-510-HF Advanced Water Products 10-inch x 4.5-inch Replacement Sediment Filter

    Advanced Water Products CMB-510-HF Whole House Filter for IHS12-D4 System

    Made for the Trojan UV Max IHS12-D4 Water Disinfection System Learn More
  25. CMB-520-HF Advanced Water Products 20-inch x 4.5-inch Replacement Sediment Filter

    Advanced Water Products CMB-520-HF Whole House Filter for IHS22-D4 System

    Made for the Trojan UV Max IHS22-D4 Water Disinfection System Learn More

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