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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.

Items 1 to 25 of 57 total

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  1. SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
    $14.99 Retail Price:  $17.34
  2. 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
  3. P1-30 Pentek Whole House Replacement Sediment Filter Cartridge

    P1-30 Pentek Whole House Sediment Water Filter

    Fits most water filtration system housings that accept standard 30-inch x 2.5-inch filter cartridges Learn More
    $14.99
  4. PD-1-20 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-1-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $10.99 Retail Price:  $11.72
  5. PD-1-40 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-1-40 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 40-inch x 2.5-inch water filter cartridges Learn More
    $18.99 Retail Price:  $20.00
  6. 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
  7. 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
  8. WP1BB20P Pentek Whole House Filter Replacement Cartridge

    WP1BB20P Pentek Whole House Filter Replacement Cartridge

    Fits Pentek Big Blue and other heavy-duty filter housings that use 20-inch filters Learn More
    $37.99 Retail Price:  $39.55
  9. WP1BB97P Pentek Replacement Filter Cartridge

    WP1BB97P Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
    $18.99
  10. BP-410-1 Pentek Polypropylene Bag Filter

    BP-410-1 Pentek Polypropylene Bag Filter

    Fits Pentek PBH-410 housings Learn More
    $4.99 Retail Price:  $7.00
  11. BP-420-1 Pentek Polypropylene Bag Filter

    BP-420-1 Pentek Polypropylene Bag Filter

    Fits Pentek PBH-420 housings Learn More
    $5.99 Retail Price:  $8.15
  12. BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter

    BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter

    Fits Pentek PBH-420 filtration system housings Learn More
    $11.99 Retail Price:  $16.55
  13. 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
  14. 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
  15. 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
  16. ECP1-20 Pentek Replacement Filter Cartridge

    ECP1-20 Pentek Replacement Filter Cartridge

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $15.99 Retail Price:  $17.70
  17. SPC-45-1001 Hydronix Pleated Sediment Water Filter

    SPC-45-1001 Hydronix Pleated Sediment Water Filter

    9 7/8 inches by 4.5 inches. Fits filtration systems that use Liquatec SPF-45-1001, Pentek 255489-43 and Watts FM-BB-10-1 water filters Learn More
    $17.99 Retail Price:  $19.54
  18. SWC-45-2001 Hydronix String Wound Sediment Water Filter

    SWC-45-2001 Hydronix String-Wound Sediment Water Filter

    20 inches by 4.5 inches, 1 micron. Fits into Big Blue water filtration housings systems that use Liquatec SWF-45-2001, Pentek: 355222-43 and Watts SF1-20-425 water filters Learn More
    $24.99 Retail Price:  $27.59
  19. SPC-25-2001 Hydronix Pleated Sediment Water Filter

    SPC-25-2001 Hydronix Pleated Sediment Water Filter

    20 inches by 2.5 inches, 1 micron. Built to replace Liquatec SPF-25-2001, Pentek 255485-43 and Watts FM-1-20 water filters Learn More
    $12.99 Retail Price:  $16.09
  20. SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    10 inches by 4.5 inches, 1 micron. Fits most 10-inch Big Blue filter housings and replaces Liquatec SWF-45-1001, Pentek 355213-43 and Watts SF1-10-425 water filters. Learn More
    $16.99 Retail Price:  $18.39
  21. CB-25-2001 Hydronix Carbon Water Filter Replacement

    CB-25-2001 Hydronix Carbon Water Filter Replacement

    Sized at 20 x 2.5 inches. 1 micron. Learn More

    Regular Price: $17.99

    Special Price: $16.05

  22. 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
  23. SDC-25-0501 Hydronix Sediment Water Filter Cartridge

    SDC-25-0501 Hydronix Sediment Water Filter Cartridge

    1 micron filter, sized 5 x 2.5 inches Learn More
    $6.99 Retail Price:  $9.34
  24. 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
  25. 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

Items 1 to 25 of 57 total

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