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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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  • P5-10BB Tier1 Sediment Water Filter

    P5-10BB Tier1 Sediment Water Filter

    $13.99 Retail Price:  $16.09
  • P5-478 Pentek Comparable Sediment Water Filter by Tier1
  • RO5 Tier1 5-Stage Reverse Osmosis System

    RO5 Tier1 5-Stage Reverse Osmosis System

    $195.99 Retail Price:  $249.99
  • 64553 Jura Clearyl Coffee Machine Replacement Cartridge

    64553 Jura Clearyl Coffee Machine Replacement Cartridge

    $23.99 Retail Price:  $29.99
  • 1236268 Merlin Reverse Osmosis Pre Filter

    1236268 GE Merlin Reverse Osmosis Pre Filter

    $29.99 Retail Price:  $32.34
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $14.99 Retail Price:  $19.99
  • C2-02 Viqua Carbon Whole House Filter

    C2-02 Viqua Carbon Whole House Filter

    $54.99 Retail Price:  $89.00
  • DuPont WFPT200X Mirage Filtered Water Pitcher

    DuPont WFPT200X Mirage Filtered Water Pitcher

    $23.99 Retail Price:  $32.99
  • DuPont WFPTC050X Water Pitcher Replacement Cartridge

    DuPont WFPTC050X Water Pitcher Replacement Cartridge

    $13.99 Retail Price:  $22.99
  • P5-10 Tier1 Sediment Water Filter (4-pack)
  • P5-10 Tier1 Sediment Water Filter (6-pack)
  • P5-10 Tier1 Sediment Water Filter (12-pack)
  • P5-10BB Tier1 Sediment Water Filter (4-pack)
  • P5-10BB Tier1 Sediment Water Filter (6-Pack)
  • P5-10BB Tier1 Sediment Water Filter (16-Pack)
  • 4002573/GRO-36EN Pentair GPD Encapsulated Membrane

    4002573/GRO-36EN Pentair GPD Encapsulated Membrane

    $74.99 Retail Price:  $92.99
  • 4002574/GRO-50EN Pentair GPD Encapsulated Membrane

    4002574/GRO-50EN Pentair GPD Encapsulated Membrane

    $74.99 Retail Price:  $92.99
  • 4002575/GRO-75EN Pentair GPD Encapsulated Membrane

    4002575/GRO-75EN Pentair GPD Encapsulated Membrane

    $74.99 Retail Price:  $92.99
  • 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

Items 1 to 48 of 219 total

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