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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  1. 600R American Plumber Undersink Filter Replacement Cartridge

    600R American Plumber Undersink Water Filter Cartridge

    Built to fit into American Plumber WIC-600 and DW-600 undersink water filtration systems Learn More
    $31.99 MSRP:  $35.06
  2. WIC-600 American Plumber Undersink Filter System

    WIC-600 American Plumber Undersink Filter System

    Fits any 1/4-inch water line Learn More
    $55.99 MSRP:  $58.34
  3. 1100R OmniFilter Quick Change Replacement Filter Cartridge

    1100R OmniFilter Quick Change Inline Refrigerator Water Filter

    For OmniFilter R1100 Quick-Change Inline Water Filtration Systems Learn More
    $28.99 MSRP:  $36.79
  4. GS-215-CB5-B Pentek Inline Filter Replacement Cartridge

    GS-215-CB5-B Pentek Inline Water Filter Cartridge

    Fits onto 1/4-inch water lines Learn More
    $27.19 MSRP:  $37.99
  5. R1100 OmniFilter Quick Change Inline Refrigerator Filter
  6. R800 OmniFilter Quick Change Inline Refrigerator Filter
  7. K2515-JJ Omnipure Lead Cyst Inline Filter

    K2515-JJ Omnipure Lead Cyst Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $22.09 MSRP:  $33.99
  8. K2520-JJ Omnipure Inline Filter

    K2520-JJ Omnipure Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $20.99 MSRP:  $29.99
  9. K5515-BB Omnipure Lead Cyst Inline Filter

    K5515-BB Omnipure Lead Cyst Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $26.49 MSRP:  $35.99
  10. K5520P-JJ Omnipure Inline Phosphate Filter

    K5520P-JJ Omnipure Inline Phosphate Filter

    Fits standard 1/4-inch water lines Learn More
    $19.99 MSRP:  $27.59
  11. K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    Fits standard 1/4-inch water lines Learn More
    $21.09 MSRP:  $33.99
  12. ELF-1M-P-KDF Omnipure Water Filter Cartridge

    ELF-1M-P-KDF Omnipure Water Filter Cartridge

    Fits residential and commercial water filtration systems that use the Everpure H-300-R water filter cartridge Learn More
    $49.99 MSRP:  $55.99
  13. IN1013-2 BevGuard Inline Water Filter

    IN1013-2 BevGuard Inline Water Filter

    Designed for use in refrigerator models with an ice and water dispenser built into the door Learn More
    $28.59 MSRP:  $35.99
  14. K5515-JJ Omnipure Inline Water Filter

    K5515-JJ Omnipure Inline Water Filter

    Sized 2.5 inches W x 10 inches L; 1 Micron; 1/4 inch FQC Learn More
    $23.99 MSRP:  $29.89
  15. E5520-K Omnipure Water Filter

    E5520-K Omnipure Water Filter

    Sized 2.5 diameter x 10 length, fits onto existing filter heads Learn More
    $19.79 MSRP:  $25.99
  16. E5722-P Omnipure Carbon Block Water Filter

    E5722-P Omnipure Carbon Block Water Filter

    Fits systems that use the Everpure 4CB5-S water filter cartridge Learn More
    $33.99 MSRP:  $49.99
  17. ELF-XL-1M-P-KDF Omnipure Carbon Block Water Filter

    ELF-XL-1M-P-KDF Omnipure Carbon Block Water Filter

    Sized 12.5 inches x 4 inches, 1 micron. Extra large format designed for use by systems in the commercial food service industry Learn More
    $39.59 MSRP:  $48.99
  18. IC6-38Q Tier1 Inline Water Filter

    IC6-38Q Tier1 Inline Water Filter

    For use on cold water lines only Learn More
    $8.99 MSRP:  $16.99
  19. K5520-BB Omnipure Carbon Block Inline Filter

    K5520-BB Omnipure Carbon Block Inline Filter

    1/4-inch FPT fittings Learn More
    $25.39 MSRP:  $30.99
  20. K5615-BB Omnipure Carbon Block Inline Filter

    K5615-BB Omnipure Carbon Block Inline Filter

    Fits 1/4 inch water lines Learn More
    $24.99 MSRP:  $31.04
  21. IC6-14Q Tier1 Inline Water Filter

    Tier1 Coconut Shell Carbon Inline Water Filter

    Sized 2 x 6 inches and made with 1/4 inch FQC fittings Learn More
    $6.99 MSRP:  $10.34
  22. Pentek 255579-43 Inline Sediment Water Filter Replacement

    Pentek 255579-43 Inline Sediment Water Filter Replacement

    Fits directly into 1/4-inch copper or plastic water lines Learn More
    $14.29 MSRP:  $21.99
  23. R200 Samsung Inline Water Filter Replacement by Tier1

    R200 OmniFilter Inline Water Filter Replacement by Tier1

    Sized 2 x 6 inches and made with 1/4 inch FQC fittings Learn More

    As Low As $0.00 Per Filter

  24. GXRTQR GE Smart Water In-Line Comparable Replacement Cartridge by Tier1

    GXRTQR GE SmartWater Inline Comparable Replacement Cartridge by Tier1

    Fits the GE SmartWater GXRTQ Filter System with 1/4 inch Quick Connect Fittings Learn More

    As Low As $13.00 Per Filter

  25. GXRTQR GE SmartWater Inline Filter Replacement Cartridge

    GXRTQR GE SmartWater Inline Filter Replacement Cartridge

    Fits the GE SmartWater GXRTQ filter system Learn More

    As Low As $20.00 Per Filter

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