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

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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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Items 1 to 48 of 64 total

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  • Hydronix SPC-45-1020 Pleated Sediment Water Filter
  • P5-10BB Tier1 Sediment Water Filter

    P5-10BB Tier1 Sediment Water Filter

    $11.99 MSRP: $24.64
    Save 51%
  • D-15 Culligan Whole Comparable House Carbon Water Filter by Tier1
  • F2-WHITE Instapure Essentials Faucet Filter System - White

    F2-WHITE Instapure Essentials Faucet Filter System - White

    $13.89
    MSRP: $21.99
    Save 37%
  • DuPont WFPTC050X Water Pitcher Replacement Cartridge
  • Pentek 255579-43 Inline Sediment Water Filter Replacement

    Pentek 255579-43 Inline Sediment Water Filter Replacement

    $14.29
    MSRP: $21.99
    Save 35%
  • WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  • P5-20BB Tier1 Sediment Water Filter

    P5-20BB Tier1 Whole House Sediment Water Filter

    $14.99 MSRP: $25.76
    Save 42%
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $15.39
    MSRP: $23.99
    Save 36%
  • Hydronix HF2-10CLWH12 Clear 10 inch Filter Housing
  • 158098 Pentek Slim Line Water Filter Housing System

    158098 Pentek Slim Line Water Filter Housing System

    $15.99
    MSRP: $19.99
    Save 20%
  • TIER1_EP5_20_FILTER

    TIER1_EP5_20_FILTER

    $15.99 MSRP: $20.69
    Save 23%
  • SDC-45-1050 Hydronix Pleated Water Filter

    SPC-45-1050 Hydronix Polypropylene Spun Water Filter

    $16.99 MSRP: $20.69
    Save 18%
  • Hydronix SPC-45-1030 Sediment Water Filter - Pleated

    SPC-45-1030 Hydronix Pleated Sediment Water Filter

    $17.99 MSRP: $19.54
    Save 8%
  • TIER1_EPM10_934_FILTER

    TIER1_EPM10_934_FILTER

    $17.99 MSRP: $30.99
    Save 42%
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)
  • SPC-45-2050 Hydronix Pleated Sediment Water Filter
  • Hydronix SDC-25-3075 Polypropylene Sediment Filter

    Hydronix SDC-25-3075 Polypropylene Sediment Filter

    $10.99
    MSRP: $11.37
    Save 3%
  • Hydronix SDC-25-3001 Polypropylene Sediment Filter
  • Hydronix SDC-25-4010 Polypropylene Sediment Filter

    Hydronix SDC-25-4010 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • Hydronix SDC-25-4050 Polypropylene Sediment Filter

    Hydronix SDC-25-4050 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • Pentek 158623 Clear 3G Filter Housing

    Pentek 158623 Clear 3G Filter Housing

    $19.99
    MSRP: $21.26
    Save 6%
  • K2386-JJ Omnipure Inline Phosphate Water Filter

    K2386-JJ Omnipure Inline Phosphate Water Filter

    $10.05
    MSRP: $17.24
    Save 42%
  • SPC-45-1010 Hydronix Pleated Sediment Water Filter

    SPC-45-1010 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $18.39
    Save 40%
  • SPC-25-2020 Hydronix Pleated Sediment Water Filter

    SPC-25-2020 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $16.09
    Save 32%
  • SPC-25-2005 Hydronix Pleated Sediment Water Filter

    SPC-25-2005 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $16.09
    Save 32%
  • CL10ROT33-A Omnipure GAC Inline Water Filter

    CL10ROT33-A Omnipure GAC Inline Water Filter

    $10.99
    MSRP: $14.94
    Save 26%
  • SPC-25-2010 Hydronix Pleated Sediment Water Filter

    SPC-25-2010 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $12.64
    Save 13%
  • SPC-25-2030 Hydronix Pleated Sediment Water Filter

    SPC-25-2030 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $12.64
    Save 13%
  • SWC-25-1010 Hydronix String Wound Sediment Water Filter

    SWC-25-1010 Hydronix String Wound Sediment Water Filter

    $10.99
    MSRP: $14.34
    Save 23%
  • 00401538 Culligan String Wound Sediment Filter
  • RUSCO-FS-1-100

    RUSCO-FS-1-100

    $11.99
  • RUSCO-FS-1-140

    RUSCO-FS-1-140

    $11.99
  • RUSCO-FS-1-60

    RUSCO-FS-1-60

    $11.99
  • WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • RUSCO-FS-1-30

    RUSCO-FS-1-30

    $11.99
  • SPC-25-2001 Hydronix Pleated Sediment Water Filter

    SPC-25-2001 Hydronix Pleated Sediment Water Filter

    $12.99
    MSRP: $16.09
    Save 19%
  • SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    $12.99
    MSRP: $16.09
    Save 19%
  • PX05-40 Purtrex Whole House Replacement Sediment Filter Cartridge
  • 153126 Pentek Filter Housing Sump - White

    153126 Pentek Filter Housing Sump - White

    $13.39
    MSRP: $17.70
    Save 24%
  • FM-25R Culligan Replacement Faucet Filter

    FM-25R Culligan Replacement Faucet Filter

    $13.89
    MSRP: $21.99
    Save 37%
  • Dupont WFSSC0501 Shower Water Filter Replacement Cartridge

    Dupont WFSSC0501 Shower Water Filter Replacement Cartridge

    $13.89
    MSRP: $19.99
    Save 31%
  • RF-3375 PUR 2-Stage Vertical Faucet Filter Replacement Cartridge - White
  • RUSCO-FS-1-500

    RUSCO-FS-1-500

    $13.99
  • RUSCO-FS-1-250

    RUSCO-FS-1-250

    $13.99
  • TIER1_IN_WF0170_FILTER

    TIER1_IN_WF0170_FILTER

    $14.69 MSRP: $18.99
    Save 23%
  • RUSCO-FS-1-100ST

    RUSCO-FS-1-100ST

    $14.99
  • SWC-45-1005 Hydronix String Wound Sediment Water Filter

    SWC-45-1005 Hydronix String Wound Sediment Water Filter

    $15.99
    MSRP: $19.54
    Save 18%

Items 1 to 48 of 64 total

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