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When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 48 of 57 total

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  • AF-20-2015 Aries Comparable Sediment Water Filter by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • TIER1-DGD1-20BB Whole House Sediment Water Filter
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge
  •  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge
  • DGD-7525-20 Pentek Whole House Replacement Sediment Filter (6-Pack)
  • ECP1-20BB Pentek Replacement Filter Cartridge (6-Pack)
  • ECP20-20BB Pentek Replacement Filter Cartridge (6-Pack)
  • ECP5-20BB Pentek Whole House Filter Replacement Cartridge (6-Pack)
  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • DGD-2501-20 Pentek Whole House Sediment Filter
  • DGD-5005-20 Pentek Whole House Water Filter
  • DGD-7525-20 Pentek Whole House Water Filter
  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    As Low As $23.00 Per Filter

  • Pentek ECP20-20BB Replacement Water Filter Cartridge

    ECP20-20BB Pentek Replacement Filter Cartridge

    As Low As $21.33 Per Filter

  • ECP5-20BB Pentek Whole House Filter Cartridge
  • Pentek ECP50-20BB Replacement Water Filter Cartridge

    ECP50-20BB Pentek Replacement Filter Cartridge

    As Low As $22.67 Per Filter

  • EP-20BB Pentek Replacement Water Filter

    EP-20BB Pentek Replacement Filter Cartridge

    As Low As $40.50 Per Filter

  • EPM-20BB Pentek Whole House Filter Cartridge
  • GAC20-BB Pentek Whole House Water Filter
  • NCP-20BB Pentek Whole House Filter Replacement
  • P5-20BB Tier1 Sediment Water Filter

    P5-20BB Tier1 Whole House Sediment Water Filter

    As Low As $11.70 Per Filter

  • Tier1 P20-20BB Whole House Replacement Sediment Filter Cartridge
  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    As Low As $30.00 Per Filter

  • S1-20BB Pentek Comparable Whole House Water Filter by Tier1
  • Pentek 166141 Big White 20-inch Filter Housing

    Pentek 166141 Big White 20-inch Filter Housing

    $39.95 Retail Price:  $58.64
  • W20CLHD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • CB-45-2010 Hydronix Replacement Filter Cartridge

    CB-45-2010 Hydronix Replacement Filter Cartridge

    $36.99 Retail Price:  $49.44
  • SPC-45-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • FLOPLUS-20BB Pentek Replacement Filter Cartridge

    FLOPLUS-20BB Pentek Replacement Filter Cartridge

    $61.99 Retail Price:  $80.49
  • OAC-20BB Pentek Oil Reduction Filter

    OAC-20BB Pentek Oil Reduction Water Filter

    $73.99 Retail Price:  $85.20
  • S1-20BB Pentek Whole House Filter Replacement Cartridge

    S1-20BB Pentek Whole House Filter Replacement Cartridge

    $21.99 Retail Price:  $25.34
  • WP1BB20P Pentek Whole House Filter Replacement Cartridge

    WP1BB20P Pentek Whole House Filter Replacement Cartridge

    $36.99 Retail Price:  $39.55
  • WP25BB20P Pentek Whole House Filter Replacement Cartridge
  • WP5BB20P Pentek Replacement Filter Cartridge

    WP5BB20P Pentek Replacement Filter Cartridge

    $34.99 Retail Price:  $42.54
  • WPX100BB20P Pentek Replacement Filter Cartridge

    WPX100BB20P Pentek Replacement Filter Cartridge

    $32.99 Retail Price:  $33.11
  • WS-20BB Pentek Whole House Filter Replacement Cartridge

    WS-20BB Pentek Whole House Filter Replacement Cartridge

    $45.99 Retail Price:  $52.08
  • BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    $89.99 Retail Price:  $144.23

Items 1 to 48 of 57 total

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