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. 150564 Pentek Whole House Water Filter System (Clear/ Blue)

    150564 Pentek Whole House Water Filter System (Clear/ Blue)

    Fits Quick Connect 3/4-inch NPT Learn More
    $77.99

    Out of stock

  2. PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  3. 650690 Trojan UV Max UV Water Purification System

    650690 Trojan UV Max UV Water Purification System

    Fits standard 3/4-inch water lines Learn More
  4. 158319 Pentek Slim Line High Temp Filter Housing - Black

    158319 Pentek Slim Line High Temp Filter Housing - Black

    Fits standard 1/2-inch water lines Learn More
    $63.99 MSRP:  $66.34
  5. 650647 Trojan UVMAX Pro 10 UV Disinfection System

    650647 Trojan UVMAX Pro 10 UV Disinfection System

    Comes complete with UV lamp, quartz sleeve and system controller Learn More
  6. TROJAN-UV-MAX 650716-007 Power Supply Kit
  7. 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
  8. 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

  9. 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

  10. VIH-34-PR10 Pentek Whole House Valve-in-Head 10 inch Filter Housing
  11. 158008 Pentek Slim Line Filter Housing - Clear

    158008 Pentek Slim Line Water Filter Housing - Clear

    Fits standard 3/8-inch water lines Learn More
    $12.79 MSRP:  $16.55
  12. 158117 Pentek Slim Line Filter Housing - Clear

    158117 Pentek Slim Line Filter Housing - Clear

    Fits standard 1/4-inch water lines Learn More
    $18.99 MSRP:  $24.14
  13. 158642 Pentek Slim Line Filter Housing - Blue

    158642 Pentek Slim Line Filter Housing - Blue

    Fits standard 3/8-inch water lines Learn More
    $19.99 MSRP:  $25.29
  14. 158643 Pentek Slim Line Filter Housing with Pressure Relief Valve - Clear

    158643 Pentek Slim Line Filter Housing with Pressure Relief Valve - Clear

    Fits standard 3/8-inch water lines Learn More
    $24.99 MSRP:  $25.98
  15. 3G-SLIM-38-NPT10 Pentek Whole House Slim 10 inch Filter Housing
  16. 158129 Pentek SlimLine Water Filter Housing (3/8 Inch)

    158129 Pentek SlimLine Water Filter Housing (3/8 Inch)

    Built to fit 20-inch x 2.5-inch water filters Learn More
    $29.99 MSRP:  $36.79
  17. 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
  18. 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

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