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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. HBSF-Grn Hydros Side-Fill Water Purifier Bottle - Green
  2. HBSF-Orng Hydros Side-Fill Water Purifier Bottle - Orange
  3. HBSF-Pnk Hydros Side-Fill Water Purifier Bottle - Pink

    Pink Hydros Side-Fill Water Purifier Bottle (#HBSF-Pnk)

    16 ounce water bottle Learn More
    $27.99 Retail Price:  $34.49
  4. F2-WHITE Instapure Essentials Faucet Filter System - White

    F2-WHITE Instapure Essentials Faucet Filter System - White

    Fits most standard kitchen water faucets Learn More
    $12.99 Retail Price:  $17.24
  5. 8017757 Katadyn MyBottle Ultralight Series 24-Ounce Personal Water Purifier Bottle - Green Deer
  6. 8014931 Katadyn Vario Backcountry Series Microfilter Water Filter
  7. CL6ROT33-A Omnipure GAC Inline Water Filter

    CL6ROT33-A Omnipure GAC Inline Water Filter

    Ideal for use in water coolers, drinking fountains, under sink systems, ice machines, and reverse osmosis systems Learn More
  8. AF-20-2015 Aries Comparable Sediment Water Filter by Tier1

    AF-20-2015 Aries Comparable Polypropylene Sediment Water Filter by Tier1

    Fits water filtration systems that accept 20 x 4.5 inch cartridges, including the #20 Big Blue and Big Boy housings by Pentek Learn More

    Regular Price: $66.99

    Special Price: $35.05

  9. AF-10-2210 Aries Comparable Sediment Water Filter by Tier1

    AF-10-2210 Aries Comparable Sediment Water Filter by Tier1

    Fits standard number 10, slim-line number 10, and other filter housings using 10 x 2.5-inch filters Learn More
    $37.99 Retail Price:  $56.39
  10. WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter - Brushed Nickel

    WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter (Brushed Nickel)

    Fits most standard faucets Learn More
    $37.99 Retail Price:  $40.34
  11. WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  12. WFFMC103X DuPont Faucet Mount Replacement Cartridges - High Protection Filter (3-pack)
  13. WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter

    WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter

    Fits all DuPont faucet mounts Learn More
    $14.99 Retail Price:  $17.34
  14. WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)
  15. C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1

    C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1

    Fits most standard 20 x 2.5-inch housings Learn More
    $14.99 Retail Price:  $21.99
  16. RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1
  17. AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    Fits standard 10 x 2.5 inch residential and industrial housings Learn More
    $16.99 Retail Price:  $22.99
  18. D-25 Culligan Under Sink Water Filter

    D-25 Culligan Under Sink Water Filter

    Fits under sink filter systems that use 10 x 2.5-inch filters Learn More
    $11.99 Retail Price:  $16.99
  19. DUPONT-WFQTC90001

    DuPont WFQTC90001 Quick Twist 3rd Stage Replacement Filter

    Fits the Dupont-WFQT39000 Quick Twist Water Filter System Learn More
  20. DuPont WFRO60X Quick Twist Reverse Osmosis System
  21. DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane

    DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane

    Fits the Dupont WFRO60X Reverse Osmosis System Learn More
  22. DuPont WFQTR130004 Quick Twist Refrigerator/Icemaker Filter System
  23. DuPont WFPT200X Mirage Filtered Water Pitcher
  24. DuPont WFPTC050X Water Pitcher Replacement Cartridge

    DuPont WFPTC050X Water Pitcher Replacement Cartridge

    Fits DuPont Water Filter Pitchers: DUPONT-WPT100XW, DUPONT-WFPT075X, DUPONT-WFPT200X Learn More
  25. DuPont WFPTC053X Water Pitcher Replacement Cartridge 3 Pack

    DuPont WFPTC053X Water Pitcher Replacement Cartridge 3 Pack

    Fits DuPont Water Filter Pitchers: DUPONT-WPT100XW, DUPONT-WFPT075X, DUPONT-WFPT200X Learn More

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