Discount Water Filters and Air Filters at Discount Filter Store.com

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Water Filtration Systems, Filters, & Parts

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. 3M Aqua-Pure AP431 Inline Filter Replacement Cartridge

    AP431 3M Aqua-Pure Inline Filter Replacement Cartridge

    Fits 3M Aqua-Pure AP430 and AP430-SS filtered hot water systems Learn More
    $30.99 MSRP:  $49.56
  2. 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    Fits any 1/4-inch plastic or copper water line Learn More
    $31.99 MSRP:  $34.49
  3. 3M Aqua-Pure AP917R Water Filter Cartridge

    AP917R 3M Aqua-Pure Replacement Filter Cartridge

    Fits the 3M Aqua-Pure AP903 Water Filtration System Learn More
  4. SST1 3M Aqua-Pure Whole House Filtration System

    SST1 3M Aqua-Pure Whole House Water Filtration System

    Installs quickly and easily with 3/8 inch NPT connections Learn More
  5. 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    Fits onto 3/4-inch NPT water lines Learn More
    $103.99 MSRP:  $137.99

    Out of stock

  6. 3M Aqua-Pure AP430SS Water Heater Scale Inhibitor

    AP430SS 3M Aqua-Pure Water Heater Scale Inhibitor System

    Fits standard 3/4-inch water heater supply line. Learn More
    $70.99 MSRP:  $90.84

    Out of stock

  7. 3M Aqua-Pure AP903 Water Filter System

    AP903 3M Aqua-Pure Water Filtration System

    Fits standard 1-inch pipe Learn More
    $239.99 MSRP:  $342.69

    Out of stock

  8. 3M Aqua-Pure AP910R Water Filter

    AP910R 3M Aqua-Pure Replacement Filter Cartridge

    Fits the 3M Aqua-Pure AP902 Water Filtration System Learn More
    $118.99 MSRP:  $128.79
  9. 3M Aqua-Pure AP510 Water Filter System

    AP510 3M Aqua-Pure Water Filtration System

    3/8-inch NPT pipe size, 5 Micron. Quick Connect fittings make installation easy! Learn More
  10. 3M Aqua-Pure AP802 Whole House Water Filter

    AP802 3M Aqua-Pure Whole House Water Filtration System

    Fits multiple styles of water filter cartridge, based on your water quality Learn More
    $100.99 MSRP:  $118.44

    Out of stock

  11. 3M Aqua-Pure AP902 Whole House Water Filter

    AP902 3M Aqua-Pure Whole House Water Filtration System

    Fits multiple styles of water filter cartridge, based on your water quality Learn More
    $204.99 MSRP:  $238.04

    Out of stock

  12. 3M Aqua-Pure AP11T Whole House Water Filter

    AP11T 3M Aqua-Pure Whole House Water Filtration System

    Uses 3/4 inch female pipe thread inlet / outlet. Fits multiple styles of replacement filters, based on your water quality. Learn More
    $79.99 MSRP:  $94.29
  13. SST1HA 3M Aqua-Pure Water Filter System Housing

    SST1HA 3M Aqua-Pure Stainless Steel Water Filtration System Housing

    Will fit industry standard water filters in a variety of filtration media types Learn More
    $201.05 MSRP:  $257.59
  14. 3M Aqua-Pure AP102T Whole House Water Filter System

    AP102T 3M Aqua-Pure Whole House Filter System

    Fits most industry standard of 20 x 2.5 inch filter cartridges Learn More
    $139.99 MSRP:  $165.99

    Out of stock

  15. 3M Aqua-Pure AP904 Carbon Water Filter

    AP904 3M Aqua-Pure Carbon Water Filter

    Installs onto water line Learn More
    $278.99 MSRP:  $330.00
  16. SST2HB 3M Aqua-Pure Whole House Filter System

    SST2HB 3M Aqua-Pure Whole House Water Filtration System

    Installs with a one inch horizontal inlet/outlet Learn More
    $350.99 MSRP:  $415.12

    Out of stock

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