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  • Your filters are guaranteed to be the right fit!
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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 48 of 130 total

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  • EPM-20 Pentek Comparable Whole House Water Filter by Tier1
  • Pentek EP-10 Replacement Water Filter Cartridge

    EP-10 Pentek Replacement Filter Cartridge

    As Low As $7.80 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-5005 Pentek Whole House Filter Cartridge
  • P5-20BB Tier1 Sediment Water Filter

    P5-20BB Tier1 Whole House Sediment Water Filter

    As Low As $11.70 Per Filter

  • Pentek 255579-43 Inline Sediment Water Filter Replacement
  • 255541-43 Pentek Inline Water Filter Replacement
  • DGD-2501 Pentek Comparable Whole House Filter by Tier1
  • R30BB Pentek Comparable Whole House Water Filter by Tier1
  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • ECP5-BB Pentek Whole House Water Filter

    ECP5-BB Pentek Whole House Filter Replacement Cartridge

    As Low As $10.20 Per Filter

  • SDC-45-1020 Hydronix Comparable Sediment Water Filter by Tier1
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $14.99 Retail Price:  $19.99
  • DGD-2501 Pentek Whole House Water Filter
  • DGD-7525 Pentek Whole House Sediment Filter
  • Pentek ECP20-20 Replacement Water Filter Cartridge

    ECP20-20 Pentek Replacement Filter Cartridge

    As Low As $11.25 Per Filter

  • Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    NCP-20 Pentek Whole House Filter Replacement Cartridge

    As Low As $13.00 Per Filter

  • CBC-10 Pentek Replacement Water Filter
  • Pentek S1-BB Replacement Water Filter Cartridge

    S1-BB Pentek Replacement Filter Cartridge

    As Low As $5.40 Per Filter

  • 158098 Pentek Slim Line Water Filter Housing System

    158098 Pentek Slim Line Water Filter Housing System

    $15.99 Retail Price:  $19.99
  • Hydronix SPC-45-1005 Whole House Sediment Filter Cartridge
  • Pentek ECP1-BB Replacement Water Filter Cartridge

    ECP1-BB Pentek Replacement Filter Cartridge

    As Low As $12.83 Per Filter

  • Pentek ECP20-BB Replacement Water Filter Cartridge

    ECP20-BB Pentek Replacement Filter Cartridge

    As Low As $12.00 Per Filter

  • EPM-20 Pentek Whole House Water Filter

    EPM-20 Pentek Whole House Filter Replacement Cartridge

    As Low As $12.00 Per Filter

  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    As Low As $11.04 Per Filter

  • 158203 Pentek Slim Line Black/Blue w/PR Water Filter System
  • Pentek C1-20 Carbon Water Filter Replacement Cartridge

    C1-20 Pentek Replacement Filter Cartridge

    As Low As $10.80 Per Filter

  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • S1-20BB Pentek Comparable Whole House Water Filter by Tier1
  • P5-10 Tier1 Sediment Water Filter (4-pack)
  • Pentek EP-20 Replacement Water Filter Cartridge

    EP-20 Pentek Replacement Filter Cartridge

    As Low As $15.50 Per Filter

  • EPM-BB Pentek Comparable Carbon Whole House Water Filter
  • Pentek WP25BB97P Whole House Water Filter Replacement Cartridge
  • Tier1 P20-20BB Whole House Replacement Sediment Filter Cartridge
  • WHKF-DWHB Whirlpool Comparable Whole House Sediment Water Filter by Tier1
  • Pentek WP5BB97P Replacement Water Filter Cartridge

    WP5BB97P Pentek Replacement Filter Cartridge

    As Low As $17.50 Per Filter

  • Pentek WPX25BB97P Whole House Water Filter Replacement Cartridge
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • Pentek WS-10 Water Softening Water Filter

    WS-10 Pentek Water Softening Filter

    As Low As $19.66 Per Filter

  • Pentek BN-420-100 Nylon Filter Bag

    Pentek BN-420-100 Nylon Filter Bag

    $10.99 Retail Price:  $13.67
  • Pentek BN-420-400 Nylon Filter Bag

    Pentek BN-420-400 Nylon Filter Bag

    $10.99 Retail Price:  $13.79
  • Pentek BN-410-200 Nylon Filter Bag

    Pentek BN-410-200 Nylon Filter Bag

    $11.99 Retail Price:  $14.34
  • Pentek 158114 10-inch Standard Filter Housing

    Pentek 158114 10-inch Standard Filter Housing

    $12.99 Retail Price:  $15.34
  • Pentek CFB-PB10 Lead & Cyst Carbon Filter

    Pentek CFB-PB10 Lead & Cyst Carbon Filter

    $13.99 Retail Price:  $17.12

Items 1 to 48 of 130 total

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