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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.

43 Item(s)

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  • K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    $19.05 Retail Price:  $27.59
  • WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $14.99 Retail Price:  $19.99
  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • DGD-2501 Pentek Whole House Water Filter
  • Pentek ECP1-BB Replacement Water Filter Cartridge

    ECP1-BB Pentek Replacement Filter Cartridge

    As Low As $12.83 Per Filter

  • Pentek P1-20 Whole House Water Filter Replacement Cartridge

    P1-20 Pentek Whole House Filter Replacement Cartridge

    As Low As $9.75 Per Filter

  • DGD-2501 Pentek Comparable Whole House Filter by Tier1
  • Hydronix SDC-25-3001 Polypropylene Sediment Filter
  • Pentek KO1HE3 Polypropylene High Efficiency Filter Bag

    Pentek KO1HE3 Polypropylene High Efficiency Filter Bag

    $16.99 Retail Price:  $19.34
  • Pentek PD-1-30 Polypropylene Sediment Filter
  • P1-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge
  • P1-30 Pentek Whole House Replacement Sediment Filter Cartridge

    P1-30 Pentek Whole House Sediment Water Filter

    $13.99 Retail Price:  $14.13
  • PD-1-40 Pentek Whole House Replacement Sediment Filter Cartridge
  • WP1BB97P Pentek Replacement Filter Cartridge
  • PX01-30 Purtrex Sediment Filter Cartridge

    PX01-30 Purtrex Sediment Filter Cartridge

    $10.49 Retail Price:  $14.36
  • GX01-30 Hytrex Replacement Filter Cartridge

    GX01-30 Hytrex Water Filter Cartridge

    $11.99 Retail Price:  $16.09
  • 8011553 Katadyn Exstream Ultralight Series Personal Water Purifier Cyst Filter
  • RS16 OmniFilter Whole House Replacement Filter Cartridge
  • E5320 Omnipure Replacement Filter Cartridge

    E5320 Omnipure Replacement Filter Cartridge

    Regular Price: $12.99

    Special Price: $11.05

  • K2515-JJ Omnipure Lead Cyst Inline Filter

    K2515-JJ Omnipure Lead Cyst Inline Filter

    $19.99 Retail Price:  $25.29
  • K2520-JJ Omnipure Inline Filter

    K2520-JJ Omnipure Inline Filter

    $18.99 Retail Price:  $24.14
  • K5520P-JJ Omnipure Inline Phosphate Filter

    K5520P-JJ Omnipure Inline Phosphate Filter

    $19.99 Retail Price:  $27.59
  • OMB934-1L Omnipure Alpha Series Undersink Filter Replacement Cartridge
  • Q5515 Omnipure Water Filter

    Q5515 Omnipure Water Filter

    $17.99 Retail Price:  $20.34
  • Q5620 Omnipure Replacement Filter Cartridge

    Q5620 Omnipure Replacement Filter Cartridge

    $19.99 Retail Price:  $25.29
  • BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter
  • C8 Pentek Whole House Replacement Filter Cartridge
  • CCBC-10 Pentek Undersink Filter Replacement Cartridge

    CCBC-10 Pentek Undersink Filter Replacement Cartridge

    $18.99 Retail Price:  $19.31
  • ECP1-20 Pentek Replacement Filter Cartridge

    ECP1-20 Pentek Replacement Filter Cartridge

    $15.99 Retail Price:  $17.70
  • E5486 Omnipure Water Filter

    E5486 Omnipure Water Filter

    $17.99 Retail Price:  $20.34
  • SPC-45-1001 Hydronix Pleated Sediment Water Filter

    SPC-45-1001 Hydronix Pleated Sediment Water Filter

    $16.99 Retail Price:  $19.54
  • SPC-25-2001 Hydronix Pleated Sediment Water Filter

    SPC-25-2001 Hydronix Pleated Sediment Water Filter

    $12.99 Retail Price:  $16.09
  • SWC-45-1001 Hydronix String-Wound Sediment Water Filter

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

    $16.99 Retail Price:  $18.39
  • WQCCC11 Watts Kwik-Change Pre-Carbon Water Filter Cartridge
  • E5520-K Omnipure Water Filter

    E5520-K Omnipure Water Filter

    $17.99 Retail Price:  $49.99
  • CB-25-2001 Hydronix Carbon Water Filter Replacement

    CB-25-2001 Hydronix Carbon Water Filter Replacement

    Regular Price: $17.99

    Special Price: $16.05

  • E5620 Omnipure E-Series Everpure Compatible Filter

    E5620 Omnipure E-Series Everpure Compatible Filter

    $18.99 Retail Price:  $36.79
  • SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    $12.99 Retail Price:  $16.09
  • Purtrex PX01-40 Polypropylene Sediment Filter

    Purtrex PX01-40 Polypropylene Sediment Filter

    $12.99 Retail Price:  $17.24
  • Dupont WFFM100XCH Faucet Mount Filter System (chrome)
  • AP-GRMB-01PP-20UB Whole House Replacement Water Filter by 3M Aqua-Pure

43 Item(s)

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