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

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  • Our products are price match guaranteed!
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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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Items 1 to 48 of 119 total

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  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1
  • FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge
  •  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge
  • DGD-7525-20 Pentek Whole House Water Filter
  • Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    $8.99 MSRP: $10.57
    Save 15%
  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    $26.99 MSRP: $33.99
    Save 21%
  • Pentek ECP1-BB Replacement Water Filter Cartridge

    Pentek ECP1-BB Water Filter Cartridge Replacement

    $15.99 MSRP: $17.12
    Save 7%
  • Pentek ECP20-20 Replacement Water Filter Cartridge

    ECP20-20 Pentek Replacement Filter Cartridge

    $15.99 MSRP: $21.99
    Save 27%
  • Pentek ECP20-20BB Replacement Water Filter Cartridge

    Pentek ECP20-20BB Pleated Sediment Water Filter Cartridge

    $24.99 MSRP: $28.39
    Save 12%
  • Pentek ECP20-BB Replacement Water Filter Cartridge

    ECP20-BB Pentek Replacement Filter Cartridge

    $15.99 MSRP: $17.70
    Save 10%
  • Pentek ECP50-20BB Replacement Water Filter Cartridge

    ECP50-20BB Pentek Replacement Filter Cartridge

    $24.99 MSRP: $31.99
    Save 22%
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • Pentek EP-20 Replacement Water Filter Cartridge

    Pentek EP-20 Water Filter Cartridge Replacements

    $17.99 MSRP: $20.00
    Save 10%
  • EP-20BB Pentek Replacement Water Filter
  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    $27.99 MSRP: $32.32
    Save 13%
  • Pentek EPM-BB Replacement Water Filter Cartridge

    Pentek EPM-BB Water Filter Cartridge Replacement

    $26.99 MSRP: $34.49
    Save 22%
  • Pentek WP5BB97P Replacement Water Filter Cartridge
  • Pentek WS-10 Water Softening Water Filter

    Pentek WS-10 Water Softening Filter

    $19.99 MSRP: $24.83
    Save 19%
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    $22.99 MSRP: $26.34
    Save 13%
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Waters Filter by Tier1 (6-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • Pentek C1-20 Carbon Water Filter Replacement Cartridge

    Pentek C1-20 Water Filter Cartridge Replacements

    $16.99 MSRP: $20.00
    Save 15%
  • CBC-10 Pentek Replacement Water Filter
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    $47.99 MSRP: $69.77
    Save 31%
  • SDC-25-0501 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • W30W American Plumber Comparable Whole House Sediment Water Filter by Tier1
  • W50W American Plumber Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-1030 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-1050-Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-10100 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • WP-30 Pentek Comparable Whole House Sediment Filter by Tier1
  • RS7-SS OmniFilter Comparable Whole House Sediment Water Filter by Tier1
  • EP-BB Pentek Comparable Carbon Block Water Filter by Tier1

    EP-BB Pentek Comparable Carbon Block Water Filter by Tier1

    $22.99 MSRP: $26.34
    Save 13%
  • 36002017 PURA UV Lamp

    36002017 PURA UV Lamp

    $60.09
    MSRP: $81.99
    Save 27%
  • 10-212 Pentek UV Lamp

    10-212 Pentek UV Lamp

    $49.69
    MSRP: $64.99
    Save 24%
  • EP-5 Pentek Replacement Filter Cartridge

    EP-5 Pentek Replacement Filter Cartridge

    $7.19
    MSRP: $11.99
    Save 40%
  • TFM-24 Desal Reverse Osmosis Membrane

    TFM-24 Desal Reverse Osmosis Membrane

    $24.99
    MSRP: $47.14
    Save 47%
  • 801-20 Harmsco Replacement Filter Cartridge

    801-20 Harmsco Replacement Filter Cartridge

    $7.99
    MSRP: $11.49
    Save 30%

Items 1 to 48 of 119 total

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