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. EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    Fits standard 20 x 2.5-inch housings Learn More
    $11.99 MSRP:  $20.99
  2. EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

    EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

    Fits most standard 20 x 4.5-inch housings Learn More
    $36.99 MSRP:  $48.99
  3. Pentek 255579-43 Inline Sediment Water Filter Replacement

    Pentek 255579-43 Inline Sediment Water Filter Replacement

    Fits directly into 1/4-inch copper or plastic water lines Learn More
    $14.29 MSRP:  $21.99
  4. CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    Fits most standard 10-inch x 2.5-inch housings Learn More
    $15.39 MSRP:  $23.99
  5. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    Fits most standard 10-inch housings Learn More

    $96.99

  6. PENTEK_EP_10_FILTER

    PENTEK_EP_10_FILTER

    As Low As $8.46 Per Filter

  7. PENTEK_EP_20_FILTER

    PENTEK_EP_20_FILTER

    As Low As $15.50 Per Filter

  8. PENTEK_EP_20BB_FILTER

    PENTEK_EP_20BB_FILTER

    As Low As $63.08 Per Filter

  9. PENTEK_EP_BB_FILTER

    PENTEK_EP_BB_FILTER

    As Low As $22.00 Per Filter

  10. PENTEK_EPM_20_FILTER

    PENTEK_EPM_20_FILTER

    As Low As $12.00 Per Filter

  11. PENTEK_EPM_20BB_FILTER

    PENTEK_EPM_20BB_FILTER

    As Low As $43.66 Per Filter

  12. PENTEK_EPM_BB_FILTER

    PENTEK_EPM_BB_FILTER

    As Low As $23.00 Per Filter

  13. PENTEK_GAC20_BB_FILTER

    PENTEK_GAC20_BB_FILTER

    As Low As $0.00 Per Filter

  14. TIER1_EP10_10_FILTER

    TIER1_EP10_10_FILTER

    As Low As $5.20 Per Filter

  15. TIER1_EP5_10_FILTER

    TIER1_EP5_10_FILTER

    As Low As $7.50 Per Filter

  16. TIER1_EPM10_934_FILTER

    TIER1_EPM10_934_FILTER

    As Low As $16.16 Per Filter

  17. TIER1_EP5_10BB_FILTER

    TIER1_EP5_10BB_FILTER

    As Low As $15.60 Per Filter

  18. TIER1_EP5_20_FILTER

    TIER1_EP5_20_FILTER

    As Low As $11.04 Per Filter

  19. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (12-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (12-Pack)

    Fits most 10 x 4.5-inch filter housings Learn More

    $181.99

  20. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)

    Fits most 10 x 4.5-inch filter housings Learn More

    $67.99

  21. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (25-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (25-Pack)

    Fits most 10 x 4.5-inch filter housings Learn More

    (Retail Price: $397.00 ) $335.99

  22. PENTEK_CBC_10_FILTER

    PENTEK_CBC_10_FILTER

    As Low As $15.00 Per Filter

  23. TIER1_EP5_20BB_FILTER

    TIER1_EP5_20BB_FILTER

    As Low As $36.00 Per Filter

  24. NFS-CB6

    NFS-CB6

    As Low As $0.00 Per Filter

  25. NFS-KX-MATRIKX-1-HD10

    NFS-KX-MATRIKX-1-HD10

    As Low As $0.00 Per Filter

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