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

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Water Filtration Systems, Filters, & Parts

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. RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1
  2. PD-25-934 Pentek Comparable Whole House Water Filter by Tier1
  3. RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    Fits standard slim 10 x 2.5-inch water filter housings Learn More
    $23.99 MSRP:  $27.99
  4. DGD-7525-20 Pentek Whole House Water Filter

    DGD-7525-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $21.00 Per Filter

  5. DGD-7525 Pentek Whole House Sediment Filter

    Pentek DGD-7525 Whole House Sediment Water Filter Cartridge Replacement

    Fits most housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $12.00 Per Filter

  6. Pentek WP25BB97P Whole House Water Filter Replacement Cartridge

    WP25BB97P Pentek Whole House Filter Replacement Cartridge

    Fits Pentek Big Blue and other heavy-duty filter housings Learn More

    As Low As $19.83 Per Filter

  7. Pentek WPX25BB97P Whole House Water Filter Replacement Cartridge

    WPX25BB97P Pentek Whole House Filter Replacement Cartridge

    Fits Pentek Big Blue and other heavy-duty filter housings Learn More

    As Low As $20.66 Per Filter

  8. FXHTC GE Comparable Whole House Radial Flow Carbon Water Filter by Tier1

    FXHTC GE Comparable Whole House Radial Flow Carbon Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More

    As Low As $0.00 Per Filter

  9. WRC25HD American Plumber Comparable Whole House Carbon Water Filter by Tier1

    WRC25HD American Plumber Comparable Whole House Radial Flow Carbon Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More

    As Low As $0.00 Per Filter

  10. W25P American Plumber Comparable Whole House Sediment Water Filter by Tier1
  11. The WGCHD American Plumber Comparable Whole House Radial Flow Carbon Water Filter by Tier1

    WGCHD American Plumber Comparable Whole House Radial Flow Carbon Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More

    As Low As $0.00 Per Filter

  12. AP-GRMB-20PP-10UB Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  13. GX20-9-78 Hytrex Comparable Whole House Sediment Water Filter by Tier1
  14. P25 Pentek Comparable Whole House Sediment Filter by Tier1
  15. PS20-10C Pentek Comparable Whole House Sediment Water Filter by Tier1
  16. PX20-9-78 Purtrex Comparable Whole House Sediment Water Filter by Tier1
  17. AP817 3M Aqua-Pure Comparable Whole House Carbon Water Filter by Tier 1

    AP817 3M Aqua-Pure Comparable Whole House Carbon Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More

    As Low As $0.00 Per Filter

  18. RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1

    RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More

    As Low As $0.00 Per Filter

  19. RFC-BB Pentek Comparable Whole House Carbon Water Filter by Tier1

    RFC-BB Pentek Comparable Whole House Carbon Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More

    As Low As $0.00 Per Filter

  20. RFC-93 Whole House Filter Replacement Cartridge by Tier1

    RFC-93 Whole House Filter Replacement Cartridge by Tier1

    Fits most 10x2.5 housings Learn More
    $17.99
  21. RFC-20 Whole House Filter Replacement Cartridge by Tier1

    RFC-20 Whole House Filter Replacement Cartridge by Tier1

    Fits most 20X2.5 housings Learn More
    $20.99
  22. RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    Fits most 20X4.5 housings Learn More
    $48.99 MSRP:  $56.99
  23. RFC-20 Pentek Comparable Whole House Filter Replacement Cartridge by Tier1

    RFC-20 Pentek Comparable Whole House Filter Replacement Cartridge by Tier1

    Fits standard 20 x 2.5-inch housings Learn More

    As Low As $0.00 Per Filter

  24. Pentek BPHE-410-25 Polypropylene High Efficiency Filter Bag

    Pentek BPHE-410-25 Polypropylene High Efficiency Filter Bag

    Fits the Pentek PBH-410 series filter bag housing Learn More
    $4.99 MSRP:  $6.08
  25. Pentek PO25G4S Polypropylene Filter Bag

    Pentek PO25G4S Polypropylene Filter Bag

    Standard #4 size with 4 inch diameter by 7 inch length fits many familiar bag filter housings Learn More
    $6.19 MSRP:  $14.99

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