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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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  • 602974 Viqua Quartz Sleeve for 602854 UV Lamp

    602974 Viqua Quartz Sleeve for 602854 UV Lamp

    $50.99 Retail Price:  $68.00
  • FRSS-1.5 Sterilight 1.5 GPM 1/2-inch Flow Restrictor
  • FRSS-1.5 Viqua 1.5 GPM 1/2-inch Flow Restrictor

    FRSS-1.5 Viqua 1.5 GPM 1/2-inch Flow Restrictor

    $52.99 Retail Price:  $90.00
  • 602734 Viqua Quartz Sleeve for 602807 UV Lamp

    602734 Viqua Quartz Sleeve for 602807 UV Lamp

    $57.99 Retail Price:  $76.00
  • 602975 Viqua Quartz Sleeve for 602855 UV Lamp

    602975 Viqua Quartz Sleeve for 602855 UV Lamp

    $57.99 Retail Price:  $77.00
  • Pentair GF20-30BPPPDB Industrial Triflex Microfiberglass Cartridge
  • 22120 Hydrologic Stealth RO 100GPD Membrane

    22120 Hydrologic Stealth RO 100GPD Membrane

    $59.99 Retail Price:  $64.99
  • 602974 Trojan UV Max Quartz Sleeve
  • 36002018 PURA UV Lamp

    36002018 PURA UV Lamp

    $51.99 Retail Price:  $70.14
  • 36002017 PURA UV Lamp

    36002017 PURA UV Lamp

    $57.99 Retail Price:  $59.79
  • HF10-MS Cuno Whole House Filter Replacement Cartridge

    HF10-MS Cuno Whole House Filter Replacement Cartridge

    Regular Price: $65.99

    Special Price: $50.05

  • HF20 Cuno Whole House Filter Replacement Cartridge

    HF20 Cuno Whole House Filter Replacement Cartridge

    Regular Price: $64.99

    Special Price: $50.05

  • RC-5 Rainshow’r Replacement Water Filter

    RC-5 Rainshow’r Replacement Water Filter

    $51.99 Retail Price:  $65.99
  • 4373575 Whirlpool Undersink Filter Kit

    4373575 Whirlpool Undersink Filter Kit

    Regular Price: $59.99

    Special Price: $52.05

  • CFS9112 Cuno Whole House Filter Replacement Cartridge

    CFS9112 Cuno Whole House Filter Replacement Cartridge

    Regular Price: $64.99

    Special Price: $52.05

Items 1 to 48 of 119 total

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