Discount Water Filters and Air Filters at Discount Filter Store.com

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Water Filtration Systems, Filters, & Parts

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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Items 1 to 48 of 59 total

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  • 602665 Viqua UltraViolet Lamp Sleeve Bolt

    602665 Viqua UltraViolet Lamp Sleeve Bolt

    $7.19
    MSRP: $13.99
    Save 49%
  • KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter
  • SWC-25-2020 Hydronix Comparable String Wound Sediment Water Filter (20 micron) by Tier1
  • 801-50-HT Harmsco Replacement Sediment Filter Cartridge

    801-50-HT Harmsco Replacement Sediment Filter Cartridge

    $7.95
    MSRP: $13.99
    Save 43%
  • PS1-20C Pentek Sediment Water Filter

    PS1-20C Pentek Sediment Water Filter

    $7.99
    MSRP: $13.55
    Save 41%
  • IC10-14C Coconut GAC Inline Water Filter (1/4-inch FPT)
  • ICF-6Q Coconut Shell Granular Activated Carbon Inline Water Filter by Tier1
  • RS-23-SED5 Culligan Comparable Pre-Reverse Osmosis Sediment Filter by Tier1
  • WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  • AP110 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  • Drinkwell PAC-13067 Pet Fountain Charcoal Filter (3-Pack)

    Drinkwell PAC-13067 Pet Fountain Charcoal Filter (3-Pack)

    $7.99
    MSRP: $11.99
    Save 33%
  • EPM-10 Pentek Comparable Undersink Filter Replacement Cartridge by Tier1
  • Pentek S1 Pleated Whole House Sediment Filter
  • RS1-SS OmniFilter Whole House Water Filter
  • TS-101L Pentek Comparable Granular Activated Carbon Inline Water Filter by Tier1
  • ICF-6 Hydronix Comparable Granular Activated Carbon Inline Water Filter by Tier1
  • ICF-6Q Hydronix Comparable Inline Water Filter by Tier1

    ICF-6Q Hydronix Comparable Inline Water Filter by Tier1

    $7.99 MSRP: $12.99
    Save 38%
  • SPC-25-1005 Hydronix Comparable Pleated Sediment Water Filter by Tier1
  • EP-5 Pentek Replacement Filter Cartridge

    EP-5 Pentek Replacement Filter Cartridge

    $7.19
    MSRP: $11.99
    Save 40%
  • Pentek BN-420-200 Nylon Filter Bag

    Pentek BN-420-200 Nylon Filter Bag

    $7.19
    MSRP: $18.99
    Save 62%
  • Pentek KO10G2S Polyester Filter Bag

    Pentek KO10G2S Polyester Filter Bag

    $7.19
    MSRP: $10.99
    Save 35%
  • Nubo 57-3045 Bubble Gum Pink Neoprene Bottle Cover

    Nubo 57-3045 Bubble Gum Pink Neoprene Bottle Cover

    $7.19
    MSRP: $18.99
    Save 62%
  • Pentek BN-410-800 Nylon Filter Bag

    Pentek BN-410-800 Nylon Filter Bag

    $7.99
    MSRP: $9.76
    Save 18%
  • Pentek PO50G3S Polypropylene Filter Bag
  • 41400008 Hydrotech Reverse Osmosis Filter

    41400008 Hydrotech Reverse Osmosis Filter

    $7.49
    MSRP: $10.99
    Save 32%
  • ISF-10 Hydronix Sediment Inline Filter

    ISF-10 Hydronix Sediment Inline Filter

    $7.79
    MSRP: $14.99
    Save 48%
  • P5-D Culligan Comparable Whole House Filter Replacement Cartridge by Tier1 (2-Pack)
  • S1A Culligan Level 2 Whole House Filter Replacement Cartridge (2-Pack)
  • 801-20 Harmsco Replacement Filter Cartridge

    801-20 Harmsco Replacement Filter Cartridge

    $7.99
    MSRP: $11.49
    Save 30%
  • AICRO Watts Inline Polishing Filter

    AICRO Watts Inline Polishing Filter

    $7.99
    MSRP: $9.19
    Save 13%
  • RS12-DS3-S06 OmniFilter Whole House Water Filter Cartridges (2-Pack)
  • BN-410-250 Pentek Nylon Bag Filter
  • ECP50-10 Pentek Replacement Filter Cartridge

    ECP50-10 Pentek Replacement Filter Cartridge

    $7.99
    MSRP: $8.15
    Save 2%
  • SPC-25-1010 Hydronix Pleated Sediment Water Filter
  • SWC-25-1001 Hydronix String Wound Sediment Water Filter
  • SWC-25-10100 Hydronix String Wound Sediment Water Filter
  • Hytrex GX03-9-34 Polypropylene Sediment Filter

    Hytrex GX03-9-34 Polypropylene Sediment Filter

    $7.99
    MSRP: $9.34
    Save 14%
  • AP-GRMB-01PP-10UB Whole House Replacement Cartridge by 3M Aqua-Pure

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