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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. P5-10 Tier1 Sediment Water Filter (12-pack)

    P5-10 Tier1 Sediment Water Filter (12-pack)

    Fits into most industry standard 10-inch water filtration system housings Learn More

    $40.99

  2. Pentair NEPP2-40DB Pureflex Pleated Polypropylene Cartridge

    Pentair NEPP2-40DB Pureflex Pleated Polypropylene Cartridge

    Fits standard filter housings that accept 40 x 2.5-inch filters Learn More
    $41.99 Retail Price:  $52.99
  3. EP-10 Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    EP-10 Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    Fits into most industry standard 10 x 2.5-inch water filtration system housings Learn More

    $45.99

  4. Pentair NEPP12-40DB Pureflex Pleated Polypropylene Cartridge

    Pentair NEPP12-40DB Pureflex Pleated Polypropylene Cartridge

    Fits standard filter housings that accept 40 x 2.5-inch filters Learn More
    $49.99 Retail Price:  $61.99
  5. Pentek 166141 Big White 20-inch Filter Housing

    Pentek 166141 Big White 20-inch Filter Housing

    Receives any standard 20 inch by 4.5 inch filter cartridge Learn More
    $45.99 Retail Price:  $58.64
  6. RS-502-MS Rainshowr Shower Filter System with Massage - White

    RS-502-MS Rainshowr Shower Filter System with Massage - White

    Fits most residential showers and baths Learn More
    $42.99 Retail Price:  $51.74
  7. HR5-WH Sprite Royale Handheld Shower Filter System - White

    HR5-WH Sprite Royale Shower Filter System: Handheld, White

    Attaches easily to most residential showers and baths Learn More
    $42.99 Retail Price:  $51.74
  8. 42645 Brita AquaView AVFF-100 Faucet Filter System - White
  9. CQ-1000-MS Rainshowr Shower Filter System with Pro Massage - White

    CQ-1000-MS Rainshowr Shower Filter System with Pro Massage - White

    Fits most residential showers and baths Learn More
    $45.99 Retail Price:  $55.19
  10. 22043 KDF Hydrologic Carbon Pre-Filter For Evolution-RO1000

    22043 KDF Hydrologic Carbon Pre-Filter For Evolution-RO1000

    Fits Evolution RO1000 reverse osmosis water filtration systems Learn More
    $45.99 Retail Price:  $55.19
  11. WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    Fits the WHED20 Whirlpool dual stage drinking water filtration system Learn More
    $47.99 Retail Price:  $59.79
  12. CQE-RC-04006 Crystal Quest Fluoride Water Filter

    CQE-RC-04006 Crystal Quest Fluoride Water Filter

    Fits Crystal Quest countertop, undersink and refrigerator water filtration systems. Sized 2 7/8 inches by 9 3/4 inches. Learn More
    $47.99 Retail Price:  $63.24
  13. CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge

    CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge

    Fits Crystal Quest countertop, undersink and refrigerator water filtration systems Learn More
    $49.99 Retail Price:  $52.34
  14. FM-BB-20-1A Watts Pleated Water Filter Cartridge

    FM-BB-20-1A Watts Pleated Water Filter Cartridge

    Sized 20 x 4.5 inches Learn More
    $49.99 Retail Price:  $75.84

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