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Water Filtration Systems & Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

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  1. 255541-43 Pentek Inline Water Filter Replacement
  2. AICRO-JGK Watts Inline Filter Cartridge

    AICRO-JGK Watts Inline Water Filter Cartridge

    For use with inline water filtration applications using 1/4-inch John Guest Quick Change fittings Learn More
    $10.99
  3. MH09-1812WH Liquatec Reverse Osmosis Membrane Housing - White

    MH09-1812WH Liquatec Reverse Osmosis Membrane Housing - White

    Fits reverse osmosis systems that use standard 11.75-inch to 12-inch membranes Learn More
    $18.99 Retail Price:  $24.14
  4. ELF-DK7 Omnipure Filter Head

    ELF-DK7 Omnipure Filter Head

    Fits standard 3/8-inch water lines Learn More
    $10.99 Retail Price:  $16.09
  5. K2567-BB Omnipure Inline Filter

    K2567-BB Omnipure Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $14.99 Retail Price:  $19.54
  6. K5567BB Omnipure Inline Filter Replacement Cartridge

    K5567BB Omnipure Inline Filter Replacement Cartridge

    Fits standard 1/4-inch water lines Learn More
    $18.79 Retail Price:  $23.91
  7. K5633CC Omnipure Inline GAC Filter Cartridge

    K5633CC Omnipure Inline GAC Water Filter

    Fits easily onto standard 3/8-inch water lines Learn More
    $15.99 Retail Price:  $17.24
  8. QNVH-BB Omnipure Twist Tap 1/4-inch NPT Non-Valved Filter Head

    QNVH-BB Omnipure Twist-Tap Water Filter Head

    Fits onto standard 1/4-inch water lines Learn More
    $11.99 Retail Price:  $16.09
  9. SCL10-B Omnipure Scale Inline Filter

    SCL10-B Omnipure Scale Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $12.99 Retail Price:  $17.24
  10. VH14 Omnipure Filter Head

    VH14 Omnipure Filter Head

    Fits standard 1/4-inch water lines Learn More
    $18.99 Retail Price:  $24.14
  11. VH38 Omnipure Filter Head

    VH38 Omnipure Filter Head

    Fits standard 3/8-inch water lines Learn More
    $18.99 Retail Price:  $24.14
  12. K2555-BB Omnipure Deionization Inline Water Filter

    K2555-BB Omnipure Deionization Inline Water Filter

    Sized 2 inches W x 10 inches L; 1/4 inch FPT Learn More
    $19.99 Retail Price:  $25.29
  13. K5605-BB Omnipure Inline Sediment Filter

    K5605-BB Omnipure Inline Sediment Filter

    Sized 2.5 inches W x 12 inches L; 5 Micron; 1/4-inch FPT Learn More
    $12.99 Retail Price:  $17.24
  14. K5528-BB Omnipure Carbon Inline Water Filter

    K5528-BB Omnipure Carbon Inline Water Filter

    Sized 10 inches x 2.5 inches with 20 x 50 Mesh Learn More

    Regular Price: $11.99

    Special Price: $11.05

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