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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).

Items 1 to 25 of 54 total

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  1. K5515-BB Omnipure Lead Cyst Inline Filter

    K5515-BB Omnipure Lead Cyst Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $23.99 Retail Price:  $25.29
  2. K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    Fits standard 1/4-inch water lines Learn More

    Regular Price: $21.99

    Special Price: $21.05

  3. K5562-BB-NRW37 Omnipure Deionization Inline Filter

    K5562-BB-NRW37 Omnipure Deionization Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $22.99 Retail Price:  $25.29
  4. K5567JJ Omnipure Inline Filter Replacement Cartridge

    K5567JJ Omnipure Replacement Inline Water Filter Cartridge

    Fits standard 1/4-inch water lines Learn More

    Regular Price: $20.99

    Special Price: $20.05

  5. K5633BB Omnipure Inline GAC Filter Cartridge

    K5633BB Omnipure Inline GAC Filter Cartridge

    Fits standard 1/4-inch water lines Learn More
    $20.99 Retail Price:  $23.34
  6. K2567JJ Omnipure Inline GAC and KDF-55 Filter Cartridge
  7. K2553-JJ Omnipure Nitrate Water Filter

    K2553-JJ Omnipure Nitrate Water Filter

    Sized 2 x 10, attaches with 1/4 inch FQC fittings Learn More
    $22.99 Retail Price:  $28.74
  8. K5520-BB Omnipure Carbon Block Inline Filter

    K5520-BB Omnipure Carbon Block Inline Filter

    1/4-inch FPT fittings Learn More
    $22.99 Retail Price:  $28.74
  9. K5615-BB Omnipure Carbon Block Inline Filter

    K5615-BB Omnipure Carbon Block Inline Filter

    Fits 1/4 inch water lines Learn More
    $24.99 Retail Price:  $31.04
  10. SL10-C Omnipure Phosphate Inline Filter

    SL10-C Omnipure Phosphate Inline Filter

    Uses 3/8-inch FPT connections Learn More
    $25.99 Retail Price:  $32.19
  11. ICF-2512-ALK Hydronix Inline Coconut Carbon Filter Cartridge

    ICF-2512-ALK Hydronix Inline Coconut Carbon Filter Cartridge

    Fits most 1/4-inch standard water lines Learn More
    $31.99 Retail Price:  $50.99
  12. K5666-KK Omnipure Inline Fluoride Filter

    K5666-KK Omnipure Inline Fluoride Filter

    Fits standard 3/8-inch water lines Learn More
    $38.99 Retail Price:  $50.99
  13. 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
    $34.99 Retail Price:  $37.34
  14. 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
    $25.99 Retail Price:  $34.00
  15. WHCF-R-PLUS Whirlpool Inline UltraEase Plus Water Filter

    Whirlpool UltraEase WHKF-R-PLUS / WHCF-R-PLUS Inline Water Filter

    Fits Whirlpool WHCF-IMTOS, WHCF-IMPLUS and WHKH-IMPLUS water filtration systems Learn More
  16. 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 Retail Price:  $29.89
  17. CQE-RF-00703 Crystal Quest Refrigerator/Inline PLUS Water Filtration System

    CQE-RF-00703 Crystal Quest Refrigerator/Inline PLUS Water Filtration System

    For use with refrigerators with built-in water dispensers, water fountains, coolers, icemakers and commercial coffee makers Learn More
    $36.99 Retail Price:  $44.84
  18. IL-FILTER H2O International Inline Shower Filter Cartridge Replacement

    IL-FILTER H2O International Inline Shower Filter Cartridge Replacement

    Fits the H2O International SHH-IL-CP inline shower filtration system Learn More
    $21.99 Retail Price:  $27.59
  19. 265062 American Hydro Systems Inline Filter for Siphoning Feeder Systems

    265062 American Hydro Systems Siphoning Feeder Filter

    Fits American Hydro Systems Siphoning Feeder Systems Learn More
    $34.21 Retail Price:  $41.64
  20. RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge

    RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge

    Fits Culligan Easy-Change filter systems including IC-EZ-3, US-EZ-3, and RV-EZ-3 Learn More
    $24.99 Retail Price:  $31.04
  21. RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge

    RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge

    Fits Culligan Easy-Change filter systems including IC-EZ-4, US-EZ-4, and RV-EZ-4 Learn More
    $40.99 Retail Price:  $50.59
  22. TS-500 Culligan Large Capacity Inline Filter Replacement Cartridge
  23. DD-7098 Daewoo Inline Filter

    DD-7098 Daewoo Inline Filter

    Fits Daewoo, Bosch, Siemens, and other refrigerator brands with an external inline water filter Learn More
    $28.99 Retail Price:  $31.34
  24. EV9100-08 Everpure IN-10 Inline Filter with 3/8 inch NPT threads

    EV9100-08 Everpure IN-10 Inline Water Filter

    Connects with 3/8 inch NPT threads and fits 1/4-inch water lines Learn More
    $20.99 Retail Price:  $33.34
  25. GXRLQ GE SmartWater Inline Filter System

    GXRLQ GE SmartWater Inline Filter System

    Fits any 1/4-inch plastic or copper water line Learn More
    $33.99 Retail Price:  $36.79

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