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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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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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  • 8017757 Katadyn MyBottle Ultralight Series 24-Ounce Personal Water Purifier Bottle - Green Deer
  • OMNIPURE-K5520SS

    OMNIPURE-K5520SS

    $19.05 Retail Price:  $27.59
  • PS1-20C Pentek Sediment Water Filter

    PS1-20C Pentek Sediment Water Filter

    $7.99 Retail Price:  $13.55
  • WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter - Brushed Nickel
  • WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  • DUPONT-WFFMC103X-3PK

    DUPONT-WFFMC103X-3PK

    $22.99
  • WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  • WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)
  • TIER1-DGD1-20BB

    TIER1-DGD1-20BB

    $20.99
  • WFDWC40001 DuPont Universal Drinking Water Carbon Block Cartridge
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $14.99 Retail Price:  $19.99
  • DUPONT-WFQTC90001
  • DuPont WFFS150XCH Chrome Counter Top Faucet System

    DuPont WFFS150XCH Chrome Counter Top Faucet System

    $44.99 Retail Price:  $71.99
  • P1 Pentek Comparable Whole House Sediment Filter by Tier1 (2-Pack)
  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge (6-Pack)
  • SWC-45-1001 Hydronix String-Wound Sediment Water Filter (20-Pack)
  • CHLORPLUS-10 Pentek Whole House Filter Replacement Cartridge (12-Pack)
  • DGD-2501 Pentek Whole House Filter Replacement Cartridge (12-Pack)
  • PENTEK_DGD_2501_20_6_PACK
  • DGD-2501 Pentek Whole House Filter Replacement Cartridge (20-Pack)
  • PENTEK_DGD_2501_6_PACK

    PENTEK_DGD_2501_6_PACK

    $76.99

  • ECP1-10 Pentek Replacement Filter Cartridge (30-Pack)
  • ECP1-20BB Pentek Replacement Filter Cartridge (6-Pack)
  • PENTEK_ECP1_BB_12_PACK

    PENTEK_ECP1_BB_12_PACK

    $153.99

  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • SPC-25-1001 Hydronix Pleated Sediment Filter

    SPC-25-1001 Hydronix Pleated Sediment Water Filter

    As Low As $6.00 Per Filter

  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • DGD-2501-20 Pentek Whole House Sediment Filter
  • DGD-2501 Pentek Whole House Water Filter
  • Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    As Low As $7.00 Per Filter

  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    As Low As $23.00 Per 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

  • P1 Pentek 10 x 2.5-inch Whole House Sediment Water Filter Replacement
  • DGD-2501 Pentek Comparable Whole House Filter by Tier1
  • Pentek P1 Polyproplyene Water Filter (10 x 2 1/2)

    P1 Pentek Whole House Filter Replacement Cartridge

    As Low As $5.60 Per Filter

  • P1-20 Pentek Comparable Sediment Water Filter by Tier1
  • P1-20BB Sediment Water Filter by Tier1

    P1-20BB Sediment Water Filter by Tier1

    As Low As $14.94 Per Filter

  • Hydronix SDC-25-3001 Polypropylene Sediment Filter
  • Pentek BPH-410-1 Polypropylene High Efficiency Filter Bag
  • 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
  • Pentek PO1HE2 Polypropylene High Efficiency Filter Bag

    Pentek PO1HE2 Polypropylene High Efficiency Filter Bag

    $30.99 Retail Price:  $174.79
  • Purtrex PX01-4-78 Polypropylene Sediment Filter

    Purtrex PX01-4-78 Polypropylene Sediment Filter

    $4.99 Retail Price:  $5.16
  • 4373529 Whirlpool Undersink Filter Replacement Cartridge

    4373529 Whirlpool Undersink Filter Replacement Cartridge

    $43.99 Retail Price:  $50.59
  • 4373574 Whirlpool Undersink Filter Kit
  • 4373575 Whirlpool Undersink Filter Kit

    4373575 Whirlpool Undersink Filter Kit

    Regular Price: $59.99

    Special Price: $52.05

  • 3M Aqua-Pure AP1001 Whole House Water Filter Cartridge

Items 1 to 48 of 167 total

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