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 61 total

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  • 600R American Plumber Undersink Filter Replacement Cartridge

    600R American Plumber Undersink Water Filter Cartridge

    $31.99
    MSRP: $35.06
    Save 9%
  • WIC-600 American Plumber Undersink Filter System

    WIC-600 American Plumber Undersink Filter System

    $55.99
    MSRP: $58.34
    Save 4%
  • FQK1K GE SmartWater Inline Filter Replacement Cartridge

    FQK1K GE SmartWater Inline Filter Replacement Cartridge

    $36.49
    MSRP: $44.99
    Save 19%
  • OMNIFILTER-1100R

    OMNIFILTER-1100R

    $28.99
    MSRP: $36.79
    Save 21%
  • GS-215-CB5-B Pentek Inline Filter Replacement Cartridge
  • R1100 OmniFilter Quick Change Inline Refrigerator Filter
  • OMNIFILTER-R800

    OMNIFILTER-R800

  • 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%
  • OMNIPURE-K5515-BB

    OMNIPURE-K5515-BB

    $26.49
  • OMNIPURE-K5520P-JJ

    OMNIPURE-K5520P-JJ

    $19.99
    MSRP: $25.29
    Save 21%
  • OMNIPURE-K5520SS

    OMNIPURE-K5520SS

    $21.09
    MSRP: $27.59
    Save 24%
  • OMNIPURE-ELF-1M-P-KDF

    OMNIPURE-ELF-1M-P-KDF

    $49.99
    MSRP: $69.99
    Save 29%
  • IN1013-2 BevGuard Inline Water Filter

    IN1013-2 BevGuard Inline Water Filter

    $28.59
    MSRP: $35.99
    Save 21%
  • OMNIPURE-K5515-JJ

    OMNIPURE-K5515-JJ

    $23.99
  • OMNIPURE-E5520-K

    OMNIPURE-E5520-K

    $19.79
    MSRP: $49.99
    Save 60%
  • OMNIPURE-E5722-P

    OMNIPURE-E5722-P

    $33.99
    MSRP: $49.99
    Save 32%
  • OMNIPURE-ELF-XL-1M-P-KDF

    OMNIPURE-ELF-XL-1M-P-KDF

    $39.59
    MSRP: $99.99
    Save 60%
  • TIER1-IC6-38Q

    TIER1-IC6-38Q

    $8.99
    MSRP: $12.99
    Save 31%
  • OMNIPURE-K5520BB

    OMNIPURE-K5520BB

    $25.39
    MSRP: $28.74
    Save 12%
  • OMNIPURE-K5615-BB

    OMNIPURE-K5615-BB

    $24.99
    MSRP: $31.04
    Save 19%
  • PENTEK-255579-43

    PENTEK-255579-43

    $14.29
    MSRP: $18.99
    Save 25%
  • R200 Samsung Inline Water Filter Replacement by Tier1

    R200 OmniFilter Inline Water Filter Replacement by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • GXRTQR GE Smart Water In-Line Comparable Replacement Cartridge by Tier1
  • GXRTQR GE SmartWater Inline Filter Replacement Cartridge
  • K5515-JJ Omnipure Inline Water Filter Replacement by Tier1

    K5515-JJ Omnipure Inline Water Filter Replacement by Tier1

    $29.99 MSRP: $49.99
    Save 40%
  • TS-500 Culligan Inline Water Filter Replacement by Tier1

    TS-500 Culligan Inline Water Filter Replacement by Tier1

    $29.99 MSRP: $49.99
    Save 40%
  • AP717 3m Aqua-Pure Comparable Inline Water Filter by Tier1

    AP717 3M Aqua-Pure Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • CL10ROT33-B Omnipure Comparable Inline Water Filter by Tier1
  • WHKF-IMTO Whirlpool Comparable Inline Water Filter by Tier1

    WHKF-IMTO Whirlpool Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • IC-100-D Culligan Comparable Inline Water Filter by Tier1

    IC-100-D Culligan Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • K5686-JJ Omnipure Comparable Inline Water Filter by Tier1

    K5686-JJ Omnipure Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • ICF-10Q Hydronix Comparable Inline Water Filter by Tier1

    ICF-10Q Hydronix Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • K2333-JJ Omnipure Comparable Inline Water Filter by Tier1

    K2333-JJ Omnipure Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • K2540-JJ Omnipure Comparable Inline Water Filter by Tier1
  • DD-7098 Daewoo Comparable Inline Water Filter by Tier1

    DD-7098 Daewoo Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • K2533BB Omnipure Comparable Inline Water Filter by Tier1

    K2533BB Omnipure Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • K5567JJ Omnipure Comparable Inline Water Filter by Tier1

    K5567JJ Omnipure Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • CL10ROT33-C-Omnipure Comparable Inline Water Filter by Tier1
  • GS-10ALS-JG14 Pentek Comparable Inline Water Filter by Tier1
  • CL10ROT40-B Omnipure Comparable Inline Water Filter by Tier1
  • AICRO-JGK Watts Comparable Inline Water Filter by Tier1

    AICRO-JGK Watts Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • K2528-JJ Omnipure Comparable Inline Water Filter by Tier1
  • K2567-BB Omnipure Comparable Inline Water Filter by Tier1

    K2567-BB Omnipure Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • CL10ROT40-C Omnipure Comparable Inline Water Filter by Tier1
  • K5586-JJ Omnipure Comparable Inline Water Filter by Tier1

    K5586-JJ Omnipure Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • GS-10-JG14 Pentek Comparable Inline Water Filter by Tier1

    GS-10-JG14 Pentek Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%
  • K5528-BB Omnipure Comparable Inline Water Filter by Tier1

    K5528-BB Omnipure Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $12.99
    Save 31%

Items 1 to 48 of 61 total

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