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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45 Item(s)

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  • AP117RO 3M Aqua-Pure Reverse Osmosis Filter
  • OMNIPURE-K5520SS

    OMNIPURE-K5520SS

    $21.09
    MSRP: $27.59
    Save 24%
  • PENTEK-CFBC-10

    PENTEK-CFBC-10

    $13.99
  • AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    $16.99
    MSRP: $22.99
    Save 26%
  • 22120 Hydrologic Stealth RO 100GPD Membrane

    22120 Hydrologic Stealth RO 100GPD Membrane

    $59.99
    MSRP: $64.99
    Save 8%
  • RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    $23.99
    MSRP: $27.99
    Save 14%
  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • Pentek EP-10 Replacement Water Filter Cartridge
  • EP-10 Pentek Comparable Carbon Block Water Filter by Tier1

    EP-10 Pentek Comparable Carbon Block Water Filter by Tier1

    $7.99 MSRP: $11.49
    Save 30%
  • Pentek WS-10 Water Softening Water Filter

    Pentek WS-10 Water Softening Filter

    $19.99 MSRP: $24.83
    Save 19%
  • CBC-10 Pentek Replacement Water Filter
  • RFC-93 Whole House Filter Replacement Cartridge by Tier1
  • 3M Aqua-Pure AP117RO Reverse Osmosis Filter (2 Pack)
  • C-CS-S 3M Aqua-Pure Undersink Water Filter
  • C-LC 3M Aqua-Pure Undersink Water Filter

    C-LC 3M Aqua-Pure Undersink Water Filter Cartridge

    $50.99
    MSRP: $65.54
    Save 22%
  • CB3 OmniFilter Undersink Filter Replacement Cartridge
  • D-30 Culligan Level 2 Undersink Filter Replacement Cartridge
  • D-40 Culligan Level 4 Undersink Water Filter Replacement Cartridge
  • EV9100-08 Everpure IN-10 Inline Filter with 3/8 inch NPT threads

    EV9100-08 Everpure IN-10 Inline Water Filter

    $22.19
    MSRP: $30.99
    Save 28%
  • FXSVC GE SmartWater Undersink Filter Set

    FXSVC GE SmartWater Undersink Filter Set

    $62.89
    MSRP: $89.99
    Save 30%
  • FXUVC GE SmartWater Undersink Filter Replacement Cartridge

    FXUVC GE SmartWater Undersink Filter Replacement Cartridge

    $56.59
    MSRP: $80.99
    Save 30%
  • P-250 Pentek Undersink Filter Set

    P-250 Pentek Undersink Filter Set

    $33.99
    MSRP: $44.99
    Save 24%
  • P-250A Pentek Undersink Filter Set
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $13.19
    MSRP: $20.99
    Save 37%
  • MATRIKX-Pb1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • OMNIPURE-E5515-P

    OMNIPURE-E5515-P

    $27.39
    MSRP: $31.04
    Save 12%
  • OMNIPURE-E5520

    OMNIPURE-E5520

    $21.99
    MSRP: $26.44
    Save 17%
  • OMNIPURE-K5505JJ

    OMNIPURE-K5505JJ

    $15.99
  • OMNIPURE-K5515-BB

    OMNIPURE-K5515-BB

    $26.49
  • OMNIPURE-K5520P-JJ

    OMNIPURE-K5520P-JJ

    $19.99
    MSRP: $25.29
    Save 21%
  • OMNIPURE-K5567BB

    OMNIPURE-K5567BB

    $18.79
    MSRP: $23.91
    Save 21%
  • OMNIPURE-K5567JJ

    OMNIPURE-K5567JJ

    $20.99
    MSRP: $26.44
    Save 21%
  • OMNIPURE-K5586-JJ

    OMNIPURE-K5586-JJ

    $16.49
    MSRP: $19.54
    Save 16%
  • OMNIPURE-Q5505

    OMNIPURE-Q5505

    $12.09
    MSRP: $15.51
    Save 22%
  • OMNIPURE-Q5515

    OMNIPURE-Q5515

    $18.99
    MSRP: $20.34
    Save 7%
  • OMNIPURE-Q5515-P

    OMNIPURE-Q5515-P

    $30.59
    MSRP: $35.64
    Save 14%
  • OMNIPURE-Q5528

    OMNIPURE-Q5528

    $14.69
    MSRP: $17.24
    Save 15%
  • PENTEK-CBR2-10R

    PENTEK-CBR2-10R

    $19.59
    MSRP: $21.95
    Save 11%
  • W9222901 Doulton Replacement Ceramic Filter
  • CB-25-1001 Hydronix Carbon Water Filter

    CB-25-1001 Hydronix Carbon Water Filter

    $9.99
    MSRP: $13.79
    Save 28%
  • OMNIPURE-K5515-JJ

    OMNIPURE-K5515-JJ

    $23.99
  • OMNIPURE-K5520BB

    OMNIPURE-K5520BB

    $25.39
    MSRP: $28.74
    Save 12%
  • OMNIPURE-Q5405

    OMNIPURE-Q5405

    $12.99
  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter
  • PENTEK-655130-43

    PENTEK-655130-43

    $13.99
    MSRP: $18.99
    Save 26%

45 Item(s)

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