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. SB-2R Water Bottle Replacement Filters (2-Pack)

    SB-2R Water Bottle Replacement Filters (2-Pack)

    Fits Culligan, Innova, Rubbermaid, Waterway filtered water bottles Learn More
    $7.99 MSRP:  $11.49
  2. 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
  3. WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  4. 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1

    155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
  5. AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1

    AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
    $7.99 MSRP:  $14.99
  6. FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1

    FXUSC GE Comparable Whole House Sediment Water Filter by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $8.99 MSRP:  $12.34
  7. CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1

    CW-F-D Culligan Comparable Whole House Sediment Water Filter by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $9.99 MSRP:  $12.99

    Out of stock

  8. CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1

    The CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
    $4.99 MSRP:  $9.99
  9. 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
    $4.99 MSRP:  $9.99
  10. S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1

    S1A-D Culligan Comparable Whole House Sediment Water Filter by Tier1(2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $5.99 MSRP:  $12.99
  11. W20CLA American Plumber Comparable Whole House Water Filter by Tier1

    W20CLA American Plumber Comparable Whole House Water Filter by Tier1 (2-Pack)

    Standard 10 inch by 2.5 inch size fits many standard size filter housings Learn More
    $6.99 MSRP:  $10.99
  12. RS1SS OmniFilter Comparable Whole House Water Filter by Tier1

    RS1SS OmniFilter Comparable Whole House Water Filter by Tier1

    Fits OmniFilter RS1-SS and GE FXWPC Learn More
    $5.99 MSRP:  $10.99
  13. PD-25-934 Pentek Comparable Whole House Water Filter by Tier1
  14. 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
    $4.99 MSRP:  $9.99
  15. 002045 Viqua Replacement O-Ring

    002045 Viqua Replacement O-Ring

    $2.99 MSRP:  $5.34
  16. R200 Samsung Inline Water Filter Replacement by Tier1

    R200 OmniFilter Inline Water Filter Replacement by Tier1

    Sized 2 x 6 inches and made with 1/4 inch FQC fittings Learn More

    As Low As $0.00 Per Filter

  17. 5073 Keurig Comparable Replacement Water Filter Cartridge Refills by Tier1 (6-Pack)

    5073 Keurig Comparable Replacement Water Filter Cartridge Refills by Tier1 (6-Pack)

    Fits Keurig and Breville coffee makers except the Mini, Mini Plus, B145 OfficePRO, and Rivo systems Learn More
    $6.99 MSRP:  $12.99
  18. DCC-RWF Cuisinart Comparable Replacement Coffee Water Filter by Tier1 (6-Pack)

    DCC-RWF Cuisinart Comparable Replacement Coffee Water Filter by Tier1 (6-Pack)

    Fits select Cuisinart coffee makers Learn More
    $5.99 MSRP:  $11.99
  19. WFF-6 Mr. Coffee Brand Comparable Replacement Water Filter by Tier1 (6-Pack)

    WFF-6 Mr. Coffee Brand Comparable Replacement Water Filter by Tier1 (6-Pack)

    Fits Mr. Coffee Brand Coffee Makers that require a disc shaped water filter cartridge Learn More
    $6.99 MSRP:  $12.99
  20. Drinkwell PAC00-13070 Pet Fountain Premium Charcoal Filter (3-Pack)

    Drinkwell PAC00-13070 Pet Fountain Premium Charcoal Filter (3-Pack)

    Fits Drinkwell Pet Fountains: Original, Platinum, Big Dog, Multi-Tier, Outdoor Dog, Mini, Everflow, and Zen Learn More
    $9.89 MSRP:  $13.99
  21. Drinkwell PAC00-13711 Pet Fountain Foam Filter (2-Pack)

    Drinkwell PAC00-13711 Pet Fountain Foam Filter (2-Pack)

    Fits Drinkwell Pet Fountains: Stainless Steel 360, Lotus, Avalon, and Pagoda Learn More
    $5.99 MSRP:  $8.99
  22. Drinkwell PAC-13067 Pet Fountain Charcoal Filter (3-Pack)

    Drinkwell PAC-13067 Pet Fountain Charcoal Filter (3-Pack)

    Fits Drinkwell Pet Fountains: Original, Platinum, Big Dog, Multi-Tier, Outdoor Dog, Mini, Everflow, and Zen Learn More
    $7.99 MSRP:  $11.99
  23. KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter

    KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter

    Fits Culligan AC15, AC30, LC50, and H83 Reverse Osmosis systems Learn More
    $7.19 MSRP:  $13.99
  24. SPC-25-1001 Hydronix Pleated Sediment Filter

    SPC-25-1001 Hydronix Pleated Sediment Water Filter

    1 micron filter, sized 9 7/8x2.5 inches Learn More

    As Low As $6.00 Per Filter

  25. Hydronix SPC-25-1005 Pleated Water Filter

    SPC-25-1005 Hydronix Pleated Sediment Water Filter

    9 7/8 inches by 2.5 inches, 5 micron. Fits into systems that use Liquatec SPF-25-1005, Pentek 255482-43 and Watts FM-5-975 water filters Learn More

    As Low As $5.16 Per Filter

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