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

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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.

Items 1 to 48 of 63 total

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  • FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • RS6 OmniFilter Comparable Whole House Water Filter by Tier1

    RS6 OmniFilter Comparable Whole House Water Filter by Tier1

    $12.99
    MSRP: $17.99
    Save 28%
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • DuPont WFPT200X Mirage Filtered Water Pitcher
  • DuPont WFPTC050X Water Pitcher Replacement Cartridge
  • DuPont WFPTC053X Water Pitcher Replacement Cartridge 3 Pack
  • BF7-S-06 OmniFilter Undersink Filter System

    BF7-S-06 OmniFilter Undersink Filter System

    $81.99
    MSRP: $85.99
    Save 5%
  • Hydronix SPC-45-1030 Sediment Water Filter - Pleated
  • Pentek CW-MF Whole House Water Filter Replacement Cartridge

    CW-MF Pentek Whole House Filter Replacement Cartridge

    $6.99 MSRP: $10.34
    Save 32%
  • R30BB Pentek Comparable Whole House Water Filter by Tier1

    R30BB Pentek Tier1 Comparable Whole House Water Filter

    $12.99 MSRP: $17.99
    Save 28%
  • RS6-SS2-S06 OmniFilter Whole House Cartridge
  • P20 Pentek 10 x 2.5-inch Comparable Whole House Sediment Water Filter
  • 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
  • ECP5-BB Pentek Comparable Whole House Water Filter by Tier1

    ECP5-BB Pentek Comparable Whole House Water Filter by Tier1

    $12.99 MSRP: $17.99
    Save 28%
  • 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
  • HB-20-50W Harmsco Comparable Whole House Sediment Water Filter by Tier1
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-2050 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • HYTREX-GX30-20

    HYTREX-GX30-20

    $10.99
  • AMERICAN-PLUMBER-W30PE

    AMERICAN-PLUMBER-W30PE

    $16.99
    MSRP: $18.04
    Save 6%
  • AMERICAN-PLUMBER-W30PEHD

    AMERICAN-PLUMBER-W30PEHD

    $23.99
  • AMERICAN-PLUMBER-W30W

    AMERICAN-PLUMBER-W30W

    $12.99
    MSRP: $13.79
    Save 6%
  • CULLIGAN-PR-1U

    CULLIGAN-PR-1U

    $12.99
    MSRP: $13.79
    Save 6%
  • CULLIGAN-PR-3

    CULLIGAN-PR-3

    $22.99
  • FXHSC

    FXHSC

    $21.99
  • FXUSC

    FXUSC

    $16.99
    MSRP: $17.24
    Save 1%
  • GE-FXSCH

    GE-FXSCH

    $14.99
    MSRP: $18.39
    Save 18%
  • GXRTDR

    GXRTDR

    $18.99
    MSRP: $24.19
    Save 21%
  • PCF1-10MB Pentek Whole House Filter Replacement Cartridge

    PCF1-10MB Pentek Whole House Filter Replacement Cartridge

    $24.99
    MSRP: $30.69
    Save 19%
  • R30-478 Pentek Undersink Filter Replacement Cartridge

    R30-478 Pentek Undersink Filter Replacement Cartridge

    $8.99
    MSRP: $12.75
    Save 29%
  • WP-30 Pentek Whole House Filter Replacement Cartridge

    WP-30 Pentek Whole House Filter Replacement Cartridge

    $6.99
    MSRP: $8.15
    Save 14%
  • PURTREX-PX30-20

    PURTREX-PX30-20

    $6.89
    MSRP: $9.19
    Save 25%
  • PURTREX-PX30-9-78

    PURTREX-PX30-9-78

    $3.99
    MSRP: $6.89
    Save 42%
  • WHKF-WHPL Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)
  • HYTREX-GX30-9-78

    HYTREX-GX30-9-78

    $5.99
    MSRP: $8.61
    Save 30%
  • OMNIFILTER-BF7-S-05

    OMNIFILTER-BF7-S-05

    $57.05
    MSRP: $82.79
    Save 31%

Items 1 to 48 of 63 total

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