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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. P1 Pentek Whole House Filter Replacement Cartridge

    P1 Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $7.99
  2. PD-1-934 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-1-934 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $7.99 Retail Price:  $8.15
  3. PS1-10C Pentek Whole House Replacement Sediment Filter Cartridge

    PS1-10C Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $4.99 Retail Price:  $5.28
  4. C8 Pentek Whole House Replacement Filter Cartridge

    C8 Pentek Whole House Replacement Filter Cartridge

    Fits most housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $13.99
  5. CCBC-10 Pentek Undersink Filter Replacement Cartridge

    CCBC-10 Pentek Undersink Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $18.99 Retail Price:  $19.31
  6. CHLORPLUS-10 Pentek Whole House Filter Replacement Cartridge

    CHLORPLUS-10 Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $20.99 Retail Price:  $21.95
  7. CRE-1 Pentek Undersink Filter Replacement Cartridge

    CRE-1 Pentek Undersink Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $23.99 Retail Price:  $30.69
  8. ECP1-10 Pentek Replacement Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    Fits most housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $9.99 Retail Price:  $10.57
  9. SBC-25-1001 Hydronix Sediment Water Filter Cartridge

    SBC-25-1001 Hydronix Sediment Water Filter Cartridge

    1 micron filter, sized 10 x 2.5 inches Learn More
  10. SDC-25-1001 Hydronix Sediment Water Filter Cartridge

    SDC-25-1001 Hydronix Sediment Water Filter Cartridge

    1 micron filter, sized 2 1/2 x 9 7/8 inches Learn More
    $7.99
  11. SPC-25-1001 Hydronix Pleated Sediment Water Filter

    SPC-25-1001 Hydronix Pleated Sediment Water Filter

    1 micron filter, sized 9 7/8x2.5 inches Learn More
    $7.99 Retail Price:  $8.04
  12. SWC-25-1001 Hydronix String Wound Sediment Water Filter

    SWC-25-1001 Hydronix String Wound Sediment Water Filter

    1 micron filter, sized 10 x 2.5 inches Learn More
    $8.99
  13. P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
    $5.99 Retail Price:  $7.99

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