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

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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. SDC-25-3005 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-25-3005 Hydronix Whole House Sediment Filter Cartridge

    Fits most filtration system housings that accept 30-inch x 2.5-inch water filter cartridges Learn More
    $12.89
  2. TFM-18-A Tier1 Reverse Osmosis Membrane

    TFM-18-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan and various other brands of reverse osmosis systems Learn More
    $35.99 MSRP:  $45.99
  3. TFM-36-A Tier1 Reverse Osmosis Membrane

    TFM-36-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan reverse osmosis systems Learn More
    $36.99 MSRP:  $49.99
  4. TFM-50-A Tier1 Reverse Osmosis Membrane

    TFM-50-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan reverse osmosis systems Learn More
  5. SWC-25-1020 Hydronix String Wound Sediment Water Filter
  6. Coconut Shell Granular Activated Carbon Inline Water Filter by Tier1

    IC6-14Q Coconut Shell Granular Activated Carbon Inline Water Filter by Tier1

    Sized 2 x 6 inches and made with 1/4 inch FQC fittings Learn More
    $7.99 MSRP:  $12.99
  7. AF-20-2015-BB Tier1 Aries Comparable KDF and Carbon Water Filter

    AF-20-2015-BB Tier1 Aries Comparable KDF and Carbon Water Filter

    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
    $89.99 MSRP:  $119.99
  8. P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  9. P1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    P1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits in housings that accept 20 x 4 1/2 inch replacement filters Learn More
    $21.99
  10. Tier1 TROM-100 RO Membrane
  11. SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    Sized 2.5 by 40 inches Learn More
    $19.99
  12. P10-30 Spun Wound Polypropylene Replacement Filter by Tier1 (10 micron)

    PD-10-30 Pentek Comparable Spun Wound Polypropylene Replacement Filter by Tier1 (10 micron)

    Made to fit housings sized 30 x 2.5 inches Learn More
    $13.99 MSRP:  $19.99
  13. Hydronix SDC-25-3001 Polypropylene Sediment Filter

    Hydronix SDC-25-3001 Polypropylene Sediment Filter

    Standard 30 inch by 2.5 inch size fits many standard size filter housings Learn More
    $18.99
  14. Hydronix SDC-25-3025 Polypropylene Sediment Filter

    Hydronix SDC-25-3025 Polypropylene Sediment Filter

    Standard 30 inch by 2.5 inch size and double open end design fits many common filter housings. Also available in a variety of micron ratings and end cap styles. Learn More
    $8.99 MSRP:  $10.91
  15. Hydronix SDC-25-3075 Polypropylene Sediment Filter

    Hydronix SDC-25-3075 Polypropylene Sediment Filter

    Standard 30 inch by 2.5 inch size fits many standard size filter housings Learn More
    $18.99
  16. Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Standard 40 inch by 2.5 inch size fits many standard size filter housings Learn More
    $11.99 MSRP:  $13.56
  17. Hydronix SDC-25-4010 Polypropylene Sediment Filter

    Hydronix SDC-25-4010 Polypropylene Sediment Filter

    Standard 40 inch by 2.5 inch size fits many standard size filter housings Learn More
    $19.99
  18. Hydronix SDC-25-4025 Polypropylene Sediment Filter

    Hydronix SDC-25-4025 Polypropylene Sediment Filter

    Standard 40 inch by 2.5 inch size fits many standard size filter housings Learn More
    $19.99
  19. Hydronix SDC-25-4050 Polypropylene Sediment Filter

    Hydronix SDC-25-4050 Polypropylene Sediment Filter

    Standard 50 inch by 2.5 inch size fits many standard size filter housings Learn More
    $16.99
  20. Hydronix SDC-25-4075 Polypropylene Sediment Filter

    Hydronix SDC-25-4075 Polypropylene Sediment Filter

    Standard 40 inch by 2.5 inch size and double open end design fits many common filter housings. Also available in a variety of micron ratings and end cap styles. Learn More
    $16.99
  21. SDC-25-3001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SDC-25-3001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits in housings that accept 30 x 2.5 inch replacement filters Learn More
    $15.99 MSRP:  $19.99
  22. SDC-25-4001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SDC-25-4001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits most housings sized at 40 x 2.5 inches Learn More
    $16.99
  23. SDC-25-4010 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  24. P25-30 Comparable Polypropylene Sediment Filter by Tier1

    P25-30 Comparable Polypropylene Sediment Filter by Tier1

    Standard 30 inch by 2.5 inch size and double open end design fits many common filter housings. Also available in a variety of micron ratings and end cap styles. Learn More
    $11.49
  25. SDC-25-4025 Hydronix Comparable Whole House Sediment Water Filter by Tier1

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