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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 193 to 240 of 2131 total

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  • 255541-43 Pentek Inline Water Filter Replacement
  • WSQC-2 WaterSentinel Reverse Osmosis Carbon GAC Filter Cartridge
  • 150072 Pentek 3/4-inch #10 Standard Blue/Clear Filter Housing
  • 158098 Pentek Slim Line Water Filter Housing System

    158098 Pentek Slim Line Water Filter Housing System

    $15.99 Retail Price:  $19.99
  • 158203 Pentek Slim Line Black/Blue w/PR Water Filter System
  • 22120 Hydrologic Stealth RO 100GPD Membrane

    22120 Hydrologic Stealth RO 100GPD Membrane

    $59.99 Retail Price:  $64.99
  • 35735 Brita Pacifica Pitcher Filter System
  • FiftyFifty V18001SS0 Water Bottle (18 oz)

    FiftyFifty V18001SS0 Water Bottle (18 oz)

    $17.99 Retail Price:  $25.99
  • FiftyFifty V24001SS0 Insulated Wide Mouth Water Bottle (24 oz.)
  • UV100A1059 Honeywell UV Surface Treatment System

    UV100A1059 Honeywell UV Surface Treatment System

    $176.99 Retail Price:  $241.99
  • Brita 23.7-oz Hard-Sided Water Bottle – Light Pink (#35811)
  • K5666-KK Omnipure Inline Fluoride Filter

    K5666-KK Omnipure Inline Fluoride Filter

    $38.99 Retail Price:  $50.99
  • Pentek 158599 Clear 3G Slim Line Filter Housing

    Pentek 158599 Clear 3G Slim Line Filter Housing

    $22.99 Retail Price:  $28.99
  • Pentek 158637 Clear 3G Slim Line Filter Housing with Pressure Relief
  • RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    $23.99 Retail Price:  $27.99
  • Pentek 150236 Big Blue Heavy Duty Filter Housing

    Pentek 150236 Big Blue Heavy Duty Filter Housing

    $58.99 Retail Price:  $73.99
  • Pentek 158214 Clear Traditional Slim Line Filter Housing

    Pentek 158214 Clear Traditional Slim Line Filter Housing

    $27.99 Retail Price:  $37.99
  • 200520 Axeon 2540 PVC Membrane Housing

    200520 Axeon 2540 PVC Membrane Housing

    $98.99 Retail Price:  $122.99
  • 200521 Axeon 4014 PVC Membrane Housing

    200521 Axeon 4014 PVC Membrane Housing

    $139.99 Retail Price:  $173.99
  • WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge
  •  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge
  • K2528-KK Omnipure GAC Inline Water Filter

    K2528-KK Omnipure GAC Inline Water Filter

    $11.99 Retail Price:  $17.99
  • BF7-S-06 OmniFilter Undersink Filter System

    BF7-S-06 OmniFilter Undersink Filter System

    $81.99 Retail Price:  $85.99
  • 150240 Pentek 10-inch Big Blue Housing

    150240 Pentek 10-inch Big Blue Housing

    $29.99 Retail Price:  $42.00
  • P5-10 Tier1 Sediment Water Filter (4-pack)
  • P5-10BB Tier1 Sediment Water Filter (4-pack)
  • P5-20BB Tier1 Whole House Sediment Water Filter (2-Pack)
  • P1 Pentek Comparable Whole House Sediment Filter by Tier1 (2-Pack)
  • Pentair HEPP10-40DB Pureflex High Efficiency

    Pentair HEPP10-40DB Pureflex High Efficiency

    $93.99 Retail Price:  $113.99
  • Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    $107.99 Retail Price:  $130.99
  • Pentair NEPP12-40DB Pureflex Pleated Polypropylene Cartridge
  • Pentair NEPP12-20DB Pureflex Pleated Polypropylene Cartridge
  • Pentair NEPP2-40DB Pureflex Pleated Polypropylene Cartridge
  • Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge
  • Garnet-812 Watts Water Treatment Media #8-12

    Garnet-812 Watts Water Treatment Media #8-12

    $31.99 Retail Price:  $40.99
  • TW30HP-2526 Filmtec Reverse Osmosis Membrane
  • P195BN Cuno Water Filter Cartridge

    P195BN 3M Cuno Water Filter Cartridge

    $176.99 Retail Price:  $237.99
  • Pentair GF20-40BPPPDB Industrial Triflex Microfiberglass Cartridge
  • Pentair GF20-30BPPPDB Industrial Triflex Microfiberglass Cartridge
  • AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    $10.99 Retail Price:  $15.99
  • CB6 Multipure Aquaversa Comparable Water Filter: HDG-CB6-14 HydroGuard

    CB6 Comparable Water Filter: HDG-CB6-14 HydroGuard

    $29.99 Retail Price:  $43.99
  • Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Hydronix HF45-10BLBK15 Filter Housing (Blue)

    $59.99 Retail Price:  $75.99

Items 193 to 240 of 2131 total

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