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

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Inline Water Filters

Keep crystal clear clean water flowing through your house, faucets, and appliances with a new brand name inline water filter.

Looking for an inline post filter for your reverse osmosis water filter system or for an inline filter to use in one of your home appliances (i.e. washing machine or dishwasher)? Choose from over 130+ inline water filters, from the industry’s best performing brands, including Watts®, Culligan®, GE, Whirlpool®, and more. From American Plumber to Whirlpool inline water filters, 0.5 micron to 30 micron filter element ratings, activated carbon to polypropylene filter media, DiscountFilterStore.com has all your inline water filter needs conveniently in one place and at prices guaranteed to beat the big box stores (100% Price Match Guarantee).

If inline filters for your home appliances isn’t quite what you’re looking for? We also carry a number of inline water filters, dechlorinators, and sediment pre-filters for use in your garden (Rainshow’r).

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Items 1 to 48 of 56 total

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  • WIC-6A American Plumber Inline Icemaker Filter

    WIC-6A American Plumber Inline Icemaker Filter

    $13.99
    MSRP: $14.94
    Save 6%
  • WICA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • WICSA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • 3M Aqua-Pure APIL3R Inline Water Filter
  • AQUAPURE-QCM-CONNECTOR

    AQUAPURE-QCM-CONNECTOR

    $4.09
    MSRP: $5.74
    Save 29%
  • IC-100A Culligan Level 1 Disposable Inline Filter

    IC-100A Culligan Level 1 Disposable Inline Filter

    $12.99
    MSRP: $16.78
    Save 23%
  • RC-EZ-1 Culligan Level 1 Easy-Change Inline Filter Replacement Cartridge
  • RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge
  • CULLIGAN-RC-EZ-4

    CULLIGAN-RC-EZ-4

    $45.19
    MSRP: $50.59
    Save 11%
  • DAEWOO-DD-7098

    DAEWOO-DD-7098

    $31.89
  • GXRLQ

    GXRLQ

    $37.59
  • GXRLQR

    GXRLQR

    $36.49
  • GXRTDR

    GXRTDR

    $20.99
    MSRP: $24.19
    Save 13%
  • HYDRONIX-ICF-10Q

    HYDRONIX-ICF-10Q

    $7.79
    MSRP: $10.34
    Save 25%
  • HYDRONIX-ICF-10Q38

    HYDRONIX-ICF-10Q38

    $9.89
    MSRP: $11.49
    Save 14%
  • ICF-6Q Hydronix Inline Coconut Carbon Filter

    ICF-6Q Hydronix Inline Coconut Carbon Filter

    $6.99
    MSRP: $10.34
    Save 32%
  • GS-10-JG14 Pentek Inline Filter System

    GS-10-JG14 Pentek Inline Water Filtration System

    $12.99
    MSRP: $15.28
    Save 15%
  • PENTEK-GS-10ALS-JG14

    PENTEK-GS-10ALS-JG14

    $14.69
    MSRP: $17.70
    Save 17%
  • R200 OmniFilter Inline Filter System

    R200 OmniFilter Inline Water Filtration System

    $14.99
    MSRP: $16.09
    Save 7%
  • WHKF-IMPLUS Whirlpool Inline Filter System
  • WHKF-IMTO Whirlpool Inline Filter

    WHKF-IMTO Whirlpool Inline Filter

    $11.99
    MSRP: $14.94
    Save 20%
  • GXRTQ GE SmartWater Inline Filter System
  • R800 OmniFilter Quick Change Inline Refrigerator Filter

    R800 OmniFilter Quick Change Inline Filter

    $28.99
    MSRP: $35.64
    Save 19%
  • OMNIPURE-ELF-NV-HEAD-DK7-P6

    OMNIPURE-ELF-NV-HEAD-DK7-P6

    $14.29
    MSRP: $17.24
    Save 17%
  • OMNIPURE-K2333-JJ

    OMNIPURE-K2333-JJ

    $12.19
    MSRP: $13.79
    Save 12%
  • OMNIPURE-K2333-KK

    OMNIPURE-K2333-KK

    $14.29
  • OMNIPURE-K2505-JJ

    OMNIPURE-K2505-JJ

    $14.29
    MSRP: $16.09
    Save 11%
  • OMNIPURE-K2515-JJ

    OMNIPURE-K2515-JJ

    $22.09
    MSRP: $25.29
    Save 13%
  • OMNIPURE-K2520-JJ

    OMNIPURE-K2520-JJ

    $20.99
    MSRP: $24.14
    Save 13%
  • K2528-JJ Omnipure Inline Filter

    K2528-JJ Omnipure Inline Filter

    $9.99
    MSRP: $13.79
    Save 28%
  • K2533-KK Omnipure Inline Filter

    K2533-KK Omnipure Inline Filter

    $13.99
    MSRP: $14.94
    Save 6%
  • OMNIPURE-K2540-JJ

    OMNIPURE-K2540-JJ

    $13.19
    MSRP: $16.09
    Save 18%
  • K2567JJ Omnipure Inline GAC and KDF-55 Filter Cartridge
  • K5520P-JJ Omnipure Inline Phosphate Filter

    K5520P-JJ Omnipure Inline Phosphate Filter

    $19.99
    MSRP: $27.59
    Save 28%
  • OMNIPURE-K5520SS

    OMNIPURE-K5520SS

    $21.09
    MSRP: $27.59
    Save 24%
  • K5567JJ Omnipure Inline Filter Replacement Cartridge

    K5567JJ Omnipure Replacement Inline Water Filter Cartridge

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

    OMNIPURE-K5586-JJ

    $16.49
    MSRP: $19.54
    Save 16%
  • OMNIPURE-K5605-JJ

    OMNIPURE-K5605-JJ

    $15.39
    MSRP: $18.39
    Save 16%
  • OMNIPURE-K5633JJ

    OMNIPURE-K5633JJ

    $15.79
    MSRP: $18.85
    Save 16%
  • K5633KK Omnipure Inline GAC Filter Cartridge

    K5633KK Omnipure Inline Water Filter Cartridge

    $14.39
    MSRP: $18.85
    Save 24%
  • Q5386 Omnipure Inline Filter Replacement Cartridge

    Q5386 Omnipure Inline Filter Replacement Cartridge

    $14.99
    MSRP: $20.00
    Save 25%
  • OMNIPURE-Q5486

    OMNIPURE-Q5486

    $15.39
    MSRP: $16.09
    Save 4%
  • QNVH-JJ Omnipure Quick Connect Water Filter Head

    QNVH-JJ Omnipure Quick Connect Water Filter Head

    $9.99
    MSRP: $13.79
    Save 28%
  • VH14-JG Omnipure Valved Head

    VH14-JG Omnipure Valved Head

    $19.99
    MSRP: $25.29
    Save 21%
  • K2386-JJ Omnipure Inline Phosphate Water Filter

    K2386-JJ Omnipure Inline Phosphate Water Filter

    $10.05
    MSRP: $17.24
    Save 42%
  • OMNIPURE-K2586-JJ

    OMNIPURE-K2586-JJ

    $18.69
  • K5515-JJ Omnipure Inline Water Filter

    K5515-JJ Omnipure Inline Water Filter

    $23.99
    MSRP: $29.89
    Save 20%
  • IC6-38Q Tier1 Inline Water Filter

Items 1 to 48 of 56 total

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