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!

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  • 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.

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Items 193 to 240 of 503 total

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  • 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)

    3WH-STDCW-F02 3M Filtrete Water Filter Cartridges (2-Pack)

    $11.99
    MSRP: $13.79
    Save 13%
  • SC-AUTO SteriPEN Portable UV System Car Charging Adapter
  • 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%
  • K2533JJ Omnipure Water Filter

    K2533JJ Omnipure Water Filter

    $11.99
    MSRP: $13.79
    Save 13%
  • 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

    BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter

    $11.99
    MSRP: $16.55
    Save 28%
  • 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

    FS-1-60 Rusco Spin-Down Polyester Replacement Water Filter

    $11.99
    MSRP: $19.54
    Save 39%
  • 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-1-24 Rusco Spin-Down Polyester Replacement Water Filter

    $11.99
    MSRP: $28.74
    Save 58%
  • 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-1-40 Rusco Spin-Down Polyester Replacement Water Filter

    $11.99
    MSRP: $19.54
    Save 39%
  • FS-3/4-100 Rusco Replacement Spin-Down Polyester Water Filter
  • FS-3/4-60 Rusco Spin-Down Polyester 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 S25001BLU Blue Insulated Water Bottle (27 oz)

    $11.99
    MSRP: $18.99
    Save 37%
  • 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%
  • CL10ROT33-B Omnipure Inline Filter

    CL10ROT33-B Omnipure Inline Filter

    $12.09
    MSRP: $16.99
    Save 29%
  • K2333-JJ Omnipure Inline Filter

    K2333-JJ Omnipure Inline Filter

    $12.09
    MSRP: $20.99
    Save 42%
  • Q5505 Omnipure Water Filter

    Q5505 Omnipure Water Filter

    $12.19
    MSRP: $21.99
    Save 45%
  • SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing

    SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing

    $12.39
    MSRP: $16.55
    Save 25%
  • C-2 Culligan RV Filter Replacement Cartridge (2-Pack)
  • MAXETW-975 Watts C-MAX Replacement Filter Cartridge

    MAXETW-975 Watts C-MAX Replacement Water Filter Cartridge

    $12.69
    MSRP: $18.99
    Save 33%
  • GX10-30 Hytrex Replacement Filter Cartridge

    GX10-30 Hytrex Water Filter Cartridge

    $12.69
    MSRP: $19.99
    Save 37%
  • 158008 Pentek Slim Line Filter Housing - Clear

    158008 Pentek Slim Line Water Filter Housing - Clear

    $12.79
    MSRP: $16.55
    Save 23%
  • SDC-25-3005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • 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%
  • 67108 Aquamira Frontier Sport Water Bottle Replacement Filter Cartridge (Military) - front
  • 1-04100-K Seychelle 27oz Stainless Steel Filter Replacement
  • 1-10200-HK-FC Seychelle 24oz Standard Replacement Flip Top Filter
  • 1-10300-P-FC-K Seychelle Advanced Replacement Pull Top Filter
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W30W American Plumber Whole House Sediment Water Filter Cartridge (2-Pack)
  • W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • 3M Aqua-Pure AP124 Whole House Water Filter Cartridge

    AP124 3M Aqua-Pure Whole House Filter Replacement Cartridge

    $12.99
    MSRP: $17.24
    Save 25%
  • IC-100A Culligan Level 1 Disposable Inline Filter

    IC-100A Culligan Level 1 Disposable Inline Filter

    $12.99
    MSRP: $16.78
    Save 23%
  • RWC-5 Culligan Level 1 Undersink Filter Replacement Cartridge
  • GS-10-JG14 Pentek Inline Filter System

    GS-10-JG14 Pentek Inline Water Filtration System

    $12.99
    MSRP: $15.28
    Save 15%
  • IC-101L Pentek Inline Filter

Items 193 to 240 of 503 total

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