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

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 192 total

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  • CB-25-1005 Hydronix Replacement Filter Cartridge

    CB-25-1005 Hydronix Replacement Filter Cartridge

    $10.49
    MSRP: $14.99
    Save 30%
  • OMNIPURE-CL10PF5-B

    OMNIPURE-CL10PF5-B

    $14.29
  • 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-E5520

    OMNIPURE-E5520

    $21.99
    MSRP: $26.44
    Save 17%
  • OMNIPURE-E5615

    OMNIPURE-E5615

    $26.99
    MSRP: $40.24
    Save 33%
  • OMNIPURE-E5620-P

    OMNIPURE-E5620-P

    $22.19
    MSRP: $31.04
    Save 29%
  • 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-E5720

    OMNIPURE-E5720

    $33.99
  • OMNIPURE-E5720-P

    OMNIPURE-E5720-P

    $25.99
    MSRP: $32.19
    Save 19%
  • OMNIPURE-ELF-1M

    OMNIPURE-ELF-1M

    $35.99
  • OMNIPURE-ELF-1ML

    OMNIPURE-ELF-1ML

    $31.99
    MSRP: $40.24
    Save 21%
  • OMNIPURE-ELF-DK7

    OMNIPURE-ELF-DK7

    $10.99
    MSRP: $16.09
    Save 32%
  • OMNIPURE-ELF-NV-HEAD-DK7-P6

    OMNIPURE-ELF-NV-HEAD-DK7-P6

    $14.29
    MSRP: $17.24
    Save 17%
  • OMNIPURE-ELFXL-1M

    OMNIPURE-ELFXL-1M

    $38.49
  • OMNIPURE-K2333-JJ

    OMNIPURE-K2333-JJ

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

    OMNIPURE-K2333-KK

    $14.29
  • OMNIPURE-K2505-JJ

    OMNIPURE-K2505-JJ

    $14.29
    MSRP: $16.09
    Save 11%
  • OMNIPURE-K2515-JJ

    OMNIPURE-K2515-JJ

    $22.09
    MSRP: $25.29
    Save 13%
  • 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-K5505JJ

    OMNIPURE-K5505JJ

    $15.99
  • OMNIPURE-K5515-BB

    OMNIPURE-K5515-BB

    $26.49
  • OMNIPURE-K5520P-JJ

    OMNIPURE-K5520P-JJ

    $19.99
    MSRP: $25.29
    Save 21%
  • OMNIPURE-K5562-BB-NRW37

    OMNIPURE-K5562-BB-NRW37

    $22.99
    MSRP: $25.29
    Save 9%
  • OMNIPURE-K5567BB

    OMNIPURE-K5567BB

    $18.79
    MSRP: $23.91
    Save 21%
  • OMNIPURE-K5567JJ

    OMNIPURE-K5567JJ

    $20.99
    MSRP: $26.44
    Save 21%
  • OMNIPURE-K5586-JJ

    OMNIPURE-K5586-JJ

    $16.49
    MSRP: $19.54
    Save 16%
  • OMNIPURE-K5605-JJ

    OMNIPURE-K5605-JJ

    $15.39
    MSRP: $18.39
    Save 16%
  • OMNIPURE-K5633BB

    OMNIPURE-K5633BB

    $20.99
  • OMNIPURE-K5633CC

    OMNIPURE-K5633CC

    $15.99
    MSRP: $17.24
    Save 7%
  • OMNIPURE-K5633JJ

    OMNIPURE-K5633JJ

    $15.79
    MSRP: $18.85
    Save 16%
  • OMNIPURE-K5633KK

    OMNIPURE-K5633KK

    $14.39
    MSRP: $18.85
    Save 24%
  • OMNIPURE-OMB934-1L

    OMNIPURE-OMB934-1L

    $16.99
    MSRP: $21.38
    Save 21%

Items 1 to 48 of 192 total

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