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

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  • Our products are price match guaranteed!
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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 97 to 144 of 201 total

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  • QC10-TSGAC Pentek Undersink Quick-Change Filter System

    QC10-TSGAC Pentek Quick-Change Water Filter Cartridge

    $26.39
    MSRP: $39.99
    Save 34%
  • QC10-TSGACR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $13.19
    MSRP: $20.99
    Save 37%
  • TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    $20.99
    MSRP: $24.60
    Save 15%
  • PENTEK-US-1500

    PENTEK-US-1500

    $172.09
    MSRP: $195.37
    Save 12%
  • FRDM-RP-EF SteriPEN Portable UV System
  • JY-RP SteriPEN Portable UV System
  • JY-UPF-RP SteriPEN Portable UV System
  • SIDE-SYS SteriPEN Portable UV System
  • 47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter
  • AICRO Watts Inline Polishing Filter

    AICRO Watts Inline Polishing Filter

    $7.99
    MSRP: $9.19
    Save 13%
  • Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    $36.99
    MSRP: $77.99
    Save 53%
  • Whirlpool WHAB-6010 Replacement Unit B Filter Cartridge

    WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    $48.99
    MSRP: $62.09
    Save 21%
  • WHKF-DB1 Whirlpool Undersink Replacement Filter Cartridge
  • Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge

    WHKF-GAC Whirlpool Undersink Replacement Filter Cartridge

    $14.99
    MSRP: $20.99
    Save 29%
  • GXRTQ GE SmartWater Inline Filter System
  • 8017764 Katadyn Microfilter System

    8017764 Katadyn ‘Mini’ Microfilter Water Filtration System

    $109.95
    MSRP: $128.74
    Save 15%
  • 8013632 Katadyn Mini Ultralight Series Microfilter Replacement Cartridge
  • K-201 Kohler Undersink Replacement Filter Cartridge

    K-201 Kohler Undersink Water Filter Cartridge Replacement

    $96.99
    MSRP: $132.60
    Save 27%
  • K-202 Kohler Undersink Replacement Filter Cartridge

    K-202 Kohler Undersink Water Filter Cartridge

    $129.99
    MSRP: $173.40
    Save 25%
  • LSB4RC Lifesaver 4000UF Water Bottle Replacement Cartridge
  • LSB6RC Lifesaver 6000UF Water Bottle Replacement Cartridge
  • OMNIFILTER-SFM2

    OMNIFILTER-SFM2

    $35.99
  • OMNIPURE-CL10ROT33-B

    OMNIPURE-CL10ROT33-B

    $12.19
    MSRP: $13.79
    Save 12%
  • OMNIPURE-CL10ROT33-C

    OMNIPURE-CL10ROT33-C

    $9.99
    MSRP: $13.79
    Save 28%
  • OMNIPURE-CL10ROT40-B

    OMNIPURE-CL10ROT40-B

    $11.09
    MSRP: $13.79
    Save 20%
  • OMNIPURE-CL10ROT40-C

    OMNIPURE-CL10ROT40-C

    $8.99
    MSRP: $12.64
    Save 29%
  • OMNIPURE-CL6ROT33-B

    OMNIPURE-CL6ROT33-B

    $11.09
    MSRP: $11.49
    Save 3%
  • OMNIPURE-CL6ROT33-C

    OMNIPURE-CL6ROT33-C

    $8.89
    MSRP: $11.49
    Save 23%
  • OMNIPURE-E5320

    OMNIPURE-E5320

    $13.69
    MSRP: $17.24
    Save 21%
  • OMNIPURE-E5515-P

    OMNIPURE-E5515-P

    $27.39
    MSRP: $31.04
    Save 12%
  • OMNIPURE-E5615

    OMNIPURE-E5615

    $26.99
    MSRP: $40.24
    Save 33%
  • OMNIPURE-E5715

    OMNIPURE-E5715

    $45.99
    MSRP: $52.89
    Save 13%
  • OMNIPURE-E5715-P

    OMNIPURE-E5715-P

    $41.19
    MSRP: $57.49
    Save 28%
  • OMNIPURE-K2333-JJ

    OMNIPURE-K2333-JJ

    $12.19
    MSRP: $13.79
    Save 12%
  • OMNIPURE-K2333-KK

    OMNIPURE-K2333-KK

    $14.29
  • OMNIPURE-K2520-JJ

    OMNIPURE-K2520-JJ

    $20.99
    MSRP: $24.14
    Save 13%
  • OMNIPURE-K2528-JJ

    OMNIPURE-K2528-JJ

    $9.99
    MSRP: $13.79
    Save 28%
  • OMNIPURE-K2533BB

    OMNIPURE-K2533BB

    $9.99
    MSRP: $13.79
    Save 28%
  • OMNIPURE-K2533JJ

    OMNIPURE-K2533JJ

    $11.99
    MSRP: $13.79
    Save 13%
  • OMNIPURE-K2533-KK

    OMNIPURE-K2533-KK

    $13.99
    MSRP: $14.94
    Save 6%
  • OMNIPURE-K2533TJ

    OMNIPURE-K2533TJ

    $11.09
    MSRP: $13.79
    Save 20%
  • OMNIPURE-K2540-JJ

    OMNIPURE-K2540-JJ

    $13.19
    MSRP: $16.09
    Save 18%
  • OMNIPURE-K2567-BB

    OMNIPURE-K2567-BB

    $16.49
    MSRP: $19.54
    Save 16%
  • OMNIPURE-K2567JJ

    OMNIPURE-K2567JJ

    $21.99
  • OMNIPURE-K5515-BB

    OMNIPURE-K5515-BB

    $26.49
  • OMNIPURE-K5520P-JJ

    OMNIPURE-K5520P-JJ

    $19.99
    MSRP: $25.29
    Save 21%
  • OMNIPURE-K5567BB

    OMNIPURE-K5567BB

    $18.79
    MSRP: $23.91
    Save 21%

Items 97 to 144 of 201 total

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