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 106 total

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  • AMERICAN-PLUMBER-WICA

    AMERICAN-PLUMBER-WICA

    $14.09
    MSRP: $18.50
    Save 24%
  • AMERICAN-PLUMBER-WICSA

    AMERICAN-PLUMBER-WICSA

    $15.39
    MSRP: $20.00
    Save 23%
  • AQUAPURE-AP717

    AQUAPURE-AP717

    $31.99
    MSRP: $34.49
    Save 7%
  • CULLIGAN-IC-100-D

    CULLIGAN-IC-100-D

    $12.99
    MSRP: $16.78
    Save 23%
  • DAEWOO-DD-7098

    DAEWOO-DD-7098

    $31.89
  • EV9100-08 Everpure IN-10 Inline Filter with 3/8 inch NPT threads

    EV9100-08 Everpure IN-10 Inline Water Filter

    $22.19
    MSRP: $30.99
    Save 28%
  • GXRTDR

    GXRTDR

    $20.99
    MSRP: $24.19
    Save 13%
  • ICF-10 Hydronix Inline Coconut Carbon Filter

    ICF-10 Hydronix Inline Coconut Carbon Filter

    $8.99
    MSRP: $9.19
    Save 2%
  • ICF-10Q Hydronix Inline Coconut Carbon Filter

    ICF-10Q Hydronix Inline Coconut Carbon Filter

    $10.99
    MSRP: $15.99
    Save 31%
  • HYDRONIX-ICF-10Q38

    HYDRONIX-ICF-10Q38

    $9.89
    MSRP: $11.49
    Save 14%
  • HYDRONIX-ICF-2512

    HYDRONIX-ICF-2512

    $26.49
  • ICF-6 Hydronix Inline Coconut Carbon Filter

    ICF-6 Hydronix Inline Coconut Carbon Filter

    $6.49
    MSRP: $13.99
    Save 54%
  • ICF-6Q Hydronix Inline Coconut Carbon Filter

    ICF-6Q Hydronix Inline Coconut Carbon Filter

    $10.99
    MSRP: $15.99
    Save 31%
  • PENTEK-GS-10-B

    PENTEK-GS-10-B

    $11.09
    MSRP: $12.75
    Save 13%
  • PENTEK-GS-10-JG14

    PENTEK-GS-10-JG14

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

    PENTEK-GS-10ALS-JG14

    $14.69
    MSRP: $17.70
    Save 17%
  • GS-6RO-B Pentek Inline Filter Replacement Cartridge
  • PENTEK-IC-101L

    PENTEK-IC-101L

    $12.99
  • PENTEK-TS-101L

    PENTEK-TS-101L

    $13.19
    MSRP: $15.28
    Save 14%
  • R200

    R200

    $14.99
    MSRP: $16.09
    Save 7%
  • WSRV-8 Water Sentinel Inline RV Water Filter

    WSRV-8 Water Sentinel Inline RV Water Filter

    $35.29
    MSRP: $45.99
    Save 23%
  • AICRO Watts Inline Polishing Filter

    AICRO Watts Inline Polishing Filter

    $7.99
    MSRP: $9.19
    Save 13%
  • AICRO-JGK Watts Inline Filter Cartridge
  • ICE-O-MATIC-IF14C

    ICE-O-MATIC-IF14C

    $100.59
  • ICE-O-MATIC-IF18C

    ICE-O-MATIC-IF18C

    $110.49
  • OMNIPURE-CL10ROT33-B

    OMNIPURE-CL10ROT33-B

    $12.19
    MSRP: $13.79
    Save 12%
  • OMNIPURE-CL10ROT33-C

    OMNIPURE-CL10ROT33-C

    $9.99
    MSRP: $13.79
    Save 28%
  • OMNIPURE-CL10ROT40-B

    OMNIPURE-CL10ROT40-B

    $11.09
    MSRP: $13.79
    Save 20%
  • CL10ROT40-C Omnipure Inline Coconut Carbon Filter

    CL10ROT40-C Omnipure Inline Coconut Carbon Filter

    $8.99
    MSRP: $12.64
    Save 29%
  • CL6ROT33-B Omnipure Inline Filter

    CL6ROT33-B Omnipure Inline Filter

    $11.09
    MSRP: $16.99
    Save 35%
  • CL6ROT33-C Omnipure Inline Filter

    CL6ROT33-C Omnipure Inline Filter

    $8.89
    MSRP: $15.99
    Save 44%
  • OMNIPURE-K2333-JJ

    OMNIPURE-K2333-JJ

    $12.19
    MSRP: $13.79
    Save 12%
  • K2333-KK Omnipure Inline Filter

    K2333-KK Omnipure Inline Filter

    $14.29
    MSRP: $19.99
    Save 29%
  • OMNIPURE-K2528-JJ

    OMNIPURE-K2528-JJ

    $9.99
    MSRP: $13.79
    Save 28%
  • OMNIPURE-K2533BB

    OMNIPURE-K2533BB

    $9.99
    MSRP: $13.79
    Save 28%
  • OMNIPURE-K2533-KK

    OMNIPURE-K2533-KK

    $13.99
    MSRP: $14.94
    Save 6%
  • OMNIPURE-K2533TJ

    OMNIPURE-K2533TJ

    $11.09
    MSRP: $13.79
    Save 20%
  • K2540-JJ Omnipure Inline Coconut Carbon Filter

    K2540-JJ Omnipure Inline Coconut Carbon Filter

    $13.19
    MSRP: $19.99
    Save 34%
  • OMNIPURE-K2567-BB

    OMNIPURE-K2567-BB

    $16.49
    MSRP: $19.54
    Save 16%
  • OMNIPURE-K2567JJ

    OMNIPURE-K2567JJ

    $21.99
  • OMNIPURE-K5567BB

    OMNIPURE-K5567BB

    $18.79
    MSRP: $23.91
    Save 21%
  • OMNIPURE-K5567JJ

    OMNIPURE-K5567JJ

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

    OMNIPURE-K5586-JJ

    $16.49
    MSRP: $19.54
    Save 16%
  • OMNIPURE-K5633BB

    OMNIPURE-K5633BB

    $20.99
  • OMNIPURE-K5633CC

    OMNIPURE-K5633CC

    $15.99
    MSRP: $17.24
    Save 7%
  • OMNIPURE-K5633JJ

    OMNIPURE-K5633JJ

    $15.79
    MSRP: $18.85
    Save 16%
  • OMNIPURE-K5633KK

    OMNIPURE-K5633KK

    $14.39
    MSRP: $18.85
    Save 24%
  • OMNIPURE-Q5386

    OMNIPURE-Q5386

    $14.99
    MSRP: $20.00
    Save 25%

Items 1 to 48 of 106 total

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