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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!
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  • You’re guaranteed to find expert help!

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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.

Items 145 to 192 of 472 total

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  • ELF-NV-HEAD-DK7-P6 Omnipure Inline Filter Head

    ELF-NV-HEAD-DK7-P6 Omnipure Inline Water Filter Head

    $11.05
    MSRP: $17.24
    Save 36%
  • K5528-BB Omnipure Carbon Inline Water Filter

    K5528-BB Omnipure Carbon Inline Water Filter

    $11.05
    MSRP: $16.09
    Save 31%
  • PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  • 153017 Pentek Slim Line Filter Housing Sump - Blue

    153017 Pentek Slim Line Filter Housing Sump - Blue

    $11.29
    MSRP: $15.28
    Save 26%
  • Q5505 Omnipure Water Filter

    Q5505 Omnipure Water Filter

    $11.49
    MSRP: $15.51
    Save 26%
  • 1-50201-C Seychelle Pure Water Straw with Regular Filter
  • W20CLA American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • 67005 Aquamira Frontier Emergency Water Filter System

    67005 Aquamira Frontier Emergency Water Filter System

    $11.99
    MSRP: $13.74
    Save 13%
  • 3M Aqua-Pure AP110 Whole House Water Filter Cartridge
  • CRF-950Z PUR Pitcher Replacement Cartridge

    CRF-950Z PUR Replacement Water Filter Pitcher

    $11.99
    MSRP: $16.09
    Save 25%
  • IC-750 Culligan Inline Filter
  • NCP-10 Culligan Whole House Filter Replacement Cartridge
  • P1-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • P5-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • 3WH-STDCW-F02 Filtrete Replacement Filter Cartridge (2-Pack)
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $11.99
    MSRP: $15.28
    Save 22%
  • SC-AUTO SteriPEN Portable UV System Car Charging Adapter
  • MAXETW-975 Watts C-MAX Replacement Filter Cartridge
  • WHKF-IMTO Whirlpool Inline Filter

    WHKF-IMTO Whirlpool Inline Filter

    $11.99
    MSRP: $14.94
    Save 20%
  • GX01-30 Hytrex Replacement Filter Cartridge

    GX01-30 Hytrex Water Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • GX10-30 Hytrex Replacement Filter Cartridge

    GX10-30 Hytrex Water Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • K2533JJ Omnipure Water Filter

    K2533JJ Omnipure Water Filter

    $11.99
    MSRP: $13.79
    Save 13%
  • K2540-JJ Omnipure Inline Coconut Carbon Filter

    K2540-JJ Omnipure Inline Coconut Carbon Filter

    $11.99
    MSRP: $16.09
    Save 25%
  • QNVH-BB Omnipure Twist Tap 1/4-inch NPT Non-Valved Filter Head

    QNVH-BB Omnipure Twist-Tap Water Filter Head

    $11.99
    MSRP: $16.09
    Save 25%
  • BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter
  • FS-1-100 Rusco Spin-Down Replacement Water Filter

    FS-1-100 Rusco Spin-Down Replacement Water Filter

    $11.99
    MSRP: $21.84
    Save 45%
  • FS-1-140 Rusco Spin-Down Replacement Water Filter

    FS-1-140 Rusco Spin-Down Replacement Water Filter

    $11.99
    MSRP: $18.39
    Save 35%
  • FS-1-60 Rusco Spin-Down Polyester Replacement Water Filter
  • WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • FS-1-24 Rusco Spin-Down Polyester Replacement Water Filter
  • FS-1-30 Rusco Spin-Down Polyester Replacement Filter

    FS-1-30 Rusco Spin-Down Polyester Replacement Filter

    $11.99
    MSRP: $31.04
    Save 61%
  • FS-1-40 Rusco Spin-Down Polyester Replacement Water Filter
  • FS-3/4-100 Rusco Replacement Spin-Down Polyester Water Filter
  • FS-3/4-60 Rusco Spin-Down Polyester Replacement Water Filter
  • HDG-P117 Hydronix Replacement Water Filter
  • K2305-KK Omnipure Inline Sediment Filters

    K2305-KK Omnipure Inline Sediment Filters

    $11.99
    MSRP: $24.14
    Save 50%
  • S1-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • FiftyFifty 27 oz. S25001RED Red Water Bottle

    FiftyFifty 27 oz. S25001RED Red Water Bottle

    $11.99
    MSRP: $18.99
    Save 37%
  • FiftyFifty 27 oz. S25001BLU Blue Insulated Water Bottle
  • FiftyFifty 27 oz. S25001SS Stainless Steel Water Bottle

    FiftyFifty 27 oz. S25001SS Stainless Steel Water Bottle

    $11.99
    MSRP: $18.99
    Save 37%
  • 20 Ounce Clear Water Bottle with Blue Infuser by Tier1

    Clear Water Bottle with Blue Infuser by Tier1 (20 Oz)

    $11.99
    MSRP: $18.99
    Save 37%
  • SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing
  • C-2 Culligan RV Filter Replacement Cartridge (2-Pack)
  • 158008 Pentek Slim Line Filter Housing - Clear

    158008 Pentek Slim Line Water Filter Housing - Clear

    $12.79
    MSRP: $16.55
    Save 23%
  • 67011 / CR-100 Aquamira Water Bottle Replacement Filter Capsule - front

    67011 / CR-100 Aquamira Filtered Water Bottle Capsule

    $12.95
    MSRP: $17.19
    Save 25%

Items 145 to 192 of 472 total

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