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.

24 Item(s)

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  • ICF-2512 Hydronix Inline Coconut Carbon Filter

    ICF-2512 Hydronix Inline Coconut Carbon Filter

    $25.69
    MSRP: $34.99
    Save 27%
  • ISF-2512 Hydronix Sediment Inline Filter

    ISF-2512 Hydronix Sediment Inline Filter

    $9.59
    MSRP: $18.99
    Save 49%
  • E5615 Omnipure Replacement Filter Cartridge

    E5615 Omnipure Replacement Filter Cartridge

    $26.99
    MSRP: $40.24
    Save 33%
  • E5620-P Omnipure Replacement Filter Cartridge

    E5620-P Omnipure Replacement Filter Cartridge

    $22.49
    MSRP: $33.99
    Save 34%
  • K5605-JJ Omnipure Sediment Inline Filter

    K5605-JJ Omnipure Sediment Inline Filter

    $14.99
    MSRP: $23.99
    Save 38%
  • K5633BB Omnipure Inline GAC Filter Cartridge

    K5633BB Omnipure Inline GAC Filter Cartridge

    $20.99
    MSRP: $23.34
    Save 10%
  • K5633CC Omnipure Inline GAC Filter Cartridge

    K5633CC Omnipure Inline GAC Water Filter

    $15.99
    MSRP: $17.24
    Save 7%
  • K5633JJ Omnipure Inline GAC Filter Cartridge

    K5633JJ Omnipure Inline GAC Filter Cartridge

    $15.39
    MSRP: $22.99
    Save 33%
  • K5633KK Omnipure Inline GAC Filter Cartridge

    K5633KK Omnipure Inline Water Filter Cartridge

    $14.39
    MSRP: $18.85
    Save 24%
  • Q5605 Omnipure Whole House Replacement Sediment Filter Cartridge
  • Q5615 Omnipure Replacement Filter Cartridge

    Q5615 Omnipure Replacement Filter Cartridge

    $32.09
    MSRP: $39.99
    Save 20%
  • Q5615-P Omnipure Replacement Filter Cartridge

    Q5615-P Omnipure Replacement Filter Cartridge

    $28.99
    MSRP: $36.79
    Save 21%
  • Q5620 Omnipure Replacement Filter Cartridge

    Q5620 Omnipure Replacement Filter Cartridge

    $19.99
    MSRP: $25.29
    Save 21%
  • Q5620-P Omnipure Replacement Filter Cartridge

    Q5620-P Omnipure Replacement Filter Cartridge

    $25.69
    MSRP: $36.99
    Save 31%
  • Q5621 Omnipure Replacement Filter Cartridge

    Q5621 Omnipure Replacement Filter Cartridge

    $21.39
    MSRP: $27.99
    Save 24%
  • Q5621-P Omnipure Replacement Filter Cartridge

    Q5621-P Omnipure Replacement Filter Cartridge

    $23.49
    MSRP: $35.99
    Save 35%
  • Q5633 Omnipure Replacement Filter Cartridge

    Q5633 Omnipure Replacement Filter Cartridge

    $18.19
    MSRP: $24.99
    Save 27%
  • Q5640 Omnipure Replacement Filter Cartridge

    Q5640 Omnipure Replacement Filter Cartridge

    $17.09
    MSRP: $24.99
    Save 32%
  • K5605-BB Omnipure Inline Sediment Filter

    K5605-BB Omnipure Inline Sediment Filter

    $13.89
    MSRP: $20.99
    Save 34%
  • CQE-RF-00703 Crystal Quest Refrigerator/Inline PLUS Water Filtration System
  • E5615-P Omnipure E-Series Water Filter

    E5615-P Omnipure E-Series Water Filter

    $29.99
    MSRP: $42.54
    Save 30%
  • Q5648 Omnipure Calcite Water Filter

    Q5648 Omnipure Calcite Water Filter

    $18.19
    MSRP: $24.99
    Save 27%
  • GXRTQR GE Smart Water In-Line Comparable Replacement Cartridge by Tier1
  • GXRTQR GE SmartWater Inline Filter Replacement Cartridge

    GXRTQR GE SmartWater Inline Filter Replacement Cartridge

    $19.99 MSRP: $34.99
    Save 43%

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