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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. 22155 Triton Water Filter Replacement Membrane by Hydrologic

    22155 Triton Water Replacement Membrane by Hydrologic

    For use with Triton Reverse Osmosis Systems Learn More
    $60.99 Retail Price:  $79.99
  2. Pentek 150236 Big Blue Heavy Duty Filter Housing

    Pentek 150236 Big Blue Heavy Duty Filter Housing

    Receives any standard 20 inch by 4.5 inch filter cartridge Learn More
    $60.99 Retail Price:  $73.99
  3. APRC1-P Aquapatrol Ice Machine Replacement Water Filter

    APRC1-P AquaPatrol Ice Machine Replacement Water Filter

    Fits the Scotsman ADS-AP1 AquaPatrol Water Filtration System Learn More
    $61.99 Retail Price:  $94.99
  4. DUPONT-WFQTC90001

    DuPont WFQTC90001 Quick Twist 3rd Stage Replacement Filter

    Fits the Dupont-WFQT39000 Quick Twist Water Filter System Learn More
  5. WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System

    WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System

    Fits standard 10 inch by 4.5 inch filter cartridges Learn More
  6. FRSS-6 Sterilight 6 GPM 1-inch Flow Restrictor
  7. FRSS-6-34 Sterilight 6 GPM 3/4-inch Flow Restrictor
  8. Sterilight 8 GPM 1-inch Flow Restrictor
  9. FRSS-10 Sterilight 10 GPM 3/4-inch Flow Restrictor
  10. FRSS-15 Viqua 15 GPM 1-inch Flow Restrictor

    FRSS-15 Viqua 15 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 Retail Price:  $110.00
  11. FRSS-20 Viqua 20 GPM 1-inch Flow Restrictor

    FRSS-20 Viqua 20 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 Retail Price:  $110.00
  12. FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 Retail Price:  $110.00
  13. FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

    FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

    3/4 x 3/4 inch FNPT fitting Learn More
    $62.99 Retail Price:  $110.00
  14. FRSS-8 Viqua 8 GPM 1-inch Flow Restrictor

    FRSS-8 Viqua 8 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 Retail Price:  $110.00
  15. Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge

    Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge

    Fits standard filter housings that accept 20 x 2.5-inch filters Learn More
    $62.99 Retail Price:  $77.99
  16. 602976 Viqua Quartz Sleeve for 602856 UV Lamp

    602976 Viqua Quartz Sleeve for 602856 UV Lamp

    For use with Viqua ultraviolet disinfection systems using the 602856 UV lamp Learn More
    $63.99 Retail Price:  $86.00
  17. FRSS-10 Viqua 10 GPM 3/4-inch Flow Restrictor

    FRSS-10 Viqua 10 GPM 3/4-inch Flow Restrictor

    $64.99 Retail Price:  $110.00
  18. FRSS-12 Viqua 12 GPM 1-inch Flow Restrictor

    FRSS-12 Viqua 12 GPM 1-inch Flow Restrictor

    $64.99 Retail Price:  $110.00
  19. Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Accepts standard 10 x 4.5-inch filters Learn More
    $65.99 Retail Price:  $82.99
  20. F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    Fits the InSinkErator F-201 Water Filtration System, and all Series 1100 and 2200 Instant Hot Water Dispensers Learn More
    $66.99 Retail Price:  $73.36
  21. 55897C Halsey-Taylor Water Sentry VII Drinking Fountain Filter

    55897C Halsey-Taylor Water Sentry VII Drinking Fountain Filter

    Fits Elkay and Halsey-Taylor Water Sentry VII drinking fountains Learn More
  22. FRSS-2.5 Sterilight 2.5 GPM 1/2-inch Flow Restrictor
  23. FRSS-3.5 Sterilight 3.5 GPM 1/2-inch Flow Restrictor
  24. FRSS-2.5 Viqua 2.5 GPM 1/2-inch Flow Restrictor

    FRSS-2.5 Viqua 2.5 GPM 1/2-inch Flow Restrictor

    1/2 x 1/2 inch FNPT fitting Learn More
    $69.99 Retail Price:  $90.00
  25. FRSS-3.5 Viqua 3.5 GPM 1/2-inch Flow Restrictor

    FRSS-3.5 Viqua 3.5 GPM 1/2-inch Flow Restrictor

    1/2 x 1/2 inch FNPT fitting Learn More
    $69.99 Retail Price:  $90.00

Items 1 to 25 of 95 total

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