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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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  • K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    Regular Price: $21.99

    Special Price: $21.05

  • AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    $16.99 Retail Price:  $22.99
  • 22120 Hydrologic Stealth RO 100GPD Membrane

    22120 Hydrologic Stealth RO 100GPD Membrane

    $59.99 Retail Price:  $64.99
  • E5515-P Omnipure Replacement Filter Cartridge

    E5515-P Omnipure Replacement Filter Cartridge

    $25.99 Retail Price:  $31.04
  • E5520 Omnipure Replacement Filter Cartridge

    E5520 Omnipure Replacement Filter Cartridge

    $21.99 Retail Price:  $26.44
  • K5505JJ Omnipure Sediment Filter Cartridge

    K5505JJ Omnipure Sediment Filter Cartridge

    $16.99 Retail Price:  $21.84
  • K5515-BB Omnipure Lead Cyst Inline Filter

    K5515-BB Omnipure Lead Cyst Inline Filter

    $23.99 Retail Price:  $25.29
  • K5520P-JJ Omnipure Inline Phosphate Filter

    K5520P-JJ Omnipure Inline Phosphate Filter

    $19.99 Retail Price:  $27.59
  • K5567BB Omnipure Inline Filter Replacement Cartridge

    K5567BB Omnipure Inline Filter Replacement Cartridge

    $18.79 Retail Price:  $23.91
  • K5567JJ Omnipure Inline Filter Replacement Cartridge

    K5567JJ Omnipure Replacement Inline Water Filter Cartridge

    Regular Price: $20.99

    Special Price: $20.05

  • K5586-JJ Omnipure Inline Phosphate Filter

    K5586-JJ Omnipure Inline Phosphate Filter

    $14.99 Retail Price:  $19.54
  • Q5505 Omnipure Water Filter

    Q5505 Omnipure Water Filter

    $11.49 Retail Price:  $15.51
  • Q5515 Omnipure Water Filter

    Q5515 Omnipure Water Filter

    $17.99 Retail Price:  $20.34
  • Q5515-P Omnipure Replacement Filter Cartridge

    Q5515-P Omnipure Replacement Filter Cartridge

    $28.99 Retail Price:  $35.64
  • Q5528 Omnipure Replacement Filter Cartridge

    Q5528 Omnipure Replacement Filter Cartridge

    $13.99 Retail Price:  $17.24
  • K5515-JJ Omnipure Inline Water Filter

    K5515-JJ Omnipure Inline Water Filter

    $23.99 Retail Price:  $29.89
  • K5520-BB Omnipure Carbon Block Inline Filter

    K5520-BB Omnipure Carbon Block Inline Filter

    $22.99 Retail Price:  $28.74
  • Q5405 Omnipure Q-Series Sediment Water Filter

    Q5405 Omnipure Q-Series Sediment Water Filter

    $13.99 Retail Price:  $16.04

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