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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.

47 Item(s)

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  • Pentek 255579-43 Inline Sediment Water Filter Replacement
  • KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter
  • Pentek EP-10 Replacement Water Filter Cartridge

    EP-10 Pentek Replacement Filter Cartridge

    As Low As $7.80 Per Filter

  • EP5-10 Tier1 Carbon Block Water Filter

    EP5-10 Tier1 Carbon Block Water Filter

    As Low As $3.82 Per Filter

  • AP327 3M Aqua-Pure Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP317 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    $25.99 Retail Price:  $34.49
  • EP35R 3M Aqua-Pure Water Filter Cartridge

    EP35R 3M Aqua-Pure Replacement Water Filter Cartridge

    $115.99 Retail Price:  $123.04
  • IL-IM-01 3M Aqua-Pure Inline Water Filter

    IL-IM-01 3M Aqua-Pure Inline Water Filter Cartridge

    $18.99 Retail Price:  $24.14
  • C-2 Culligan RV Filter Replacement Cartridge (2-Pack)
  • IC-EZ-1 Culligan Level 1 Easy-Change Inline Filter System
  • P1012581 Culligan Undersink Replacement Filter Cartridge
  • RC-EZ-1 Culligan Level 1 Easy-Change Inline Filter Replacement Cartridge
  • US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  • P-124B Cuno Whole House Filter Replacement Cartridge

    P-124B Cuno Whole House Water Filter Cartridge

    $97.05 Retail Price:  $128.79
  • SWC1350 Cuno Whole House Filter Replacement Cartridge

    SWC1350 Cuno Whole House Water Filter Cartridge

    $67.99 Retail Price:  $81.64
  • SWC1350-C Cuno Whole House Filter Replacement Cartridge

    SWC1350-C Cuno Whole House Water Filter Cartridge

    $60.99 Retail Price:  $81.64
  • ICF-10 Hydronix Inline Coconut Carbon Filter

    ICF-10 Hydronix Inline Coconut Carbon Filter

    $7.05 Retail Price:  $9.19
  • ICF-10Q Hydronix Inline Coconut Carbon Filter

    ICF-10Q Hydronix Inline Coconut Carbon Filter

    $6.99 Retail Price:  $10.34
  • ICF-10Q38 Hydronix Inline Coconut Carbon Filter

    ICF-10Q38 Hydronix Inline Coconut Carbon Filter

    $8.99 Retail Price:  $11.49
  • ICF-2512 Hydronix Inline Coconut Carbon Filter

    ICF-2512 Hydronix Inline Coconut Carbon Filter

    $23.99 Retail Price:  $26.34
  • ICF-6 Hydronix Inline Coconut Carbon Filter

    ICF-6 Hydronix Inline Coconut Carbon Filter

    $5.99 Retail Price:  $9.19
  • ICF-6Q Hydronix Inline Coconut Carbon Filter

    ICF-6Q Hydronix Inline Coconut Carbon Filter

    $6.99 Retail Price:  $10.34
  • ISF-10 Hydronix Sediment Inline Filter

    ISF-10 Hydronix Sediment Inline Filter

    $6.99 Retail Price:  $10.34
  • ISF-2512 Hydronix Sediment Inline Filter

    ISF-2512 Hydronix Sediment Inline Filter

    $8.99 Retail Price:  $12.64
  • QC10-EPR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • QC10-TSGACR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • AICRO-JGK Watts Inline Filter Cartridge
  • AR-PRE Manitowoc Arctic Pure Ice Machine Pre-Filter Assembly
  • CL10PF5-B Omnipure Sediment Inline Filter

    CL10PF5-B Omnipure Sediment Inline Filter

    $12.99 Retail Price:  $13.79
  • CL10ROT33-B Omnipure Inline Filter

    CL10ROT33-B Omnipure Inline Filter

    $10.99 Retail Price:  $13.79
  • CL10ROT33-C Omnipure Inline Filter

    CL10ROT33-C Omnipure Inline Filter

    $9.99 Retail Price:  $13.79
  • CL10ROT40-B Omnipure Inline Coconut Carbon Filter

    CL10ROT40-B Omnipure Inline Coconut Carbon Filter

    $9.99 Retail Price:  $13.79
  • CL10ROT40-C Omnipure Inline Coconut Carbon Filter

    CL10ROT40-C Omnipure Inline Coconut Carbon Filter

    $8.99 Retail Price:  $12.64
  • CL6ROT33-B Omnipure Inline Filter

    CL6ROT33-B Omnipure Inline Filter

    $9.99 Retail Price:  $11.49
  • CL6ROT33-C Omnipure Inline Filter

    CL6ROT33-C Omnipure Inline Filter

    $7.99 Retail Price:  $11.49
  • K2505-JJ Omnipure Sediment Inline Filter

    K2505-JJ Omnipure Sediment Inline Filter

    $12.99 Retail Price:  $16.09
  • K5505JJ Omnipure Sediment Filter Cartridge

    K5505JJ Omnipure Sediment Filter Cartridge

    $15.99 Retail Price:  $21.84
  • K5605-JJ Omnipure Sediment Inline Filter

    K5605-JJ Omnipure Sediment Inline Filter

    $13.99 Retail Price:  $18.39
  • Q5505 Omnipure Water Filter

    Q5505 Omnipure Water Filter

    $11.49 Retail Price:  $15.51
  • Q5605 Omnipure Whole House Replacement Sediment Filter Cartridge
  • CL10ROT33-A Omnipure GAC Inline Water Filter

    CL10ROT33-A Omnipure GAC Inline Water Filter

    $10.99 Retail Price:  $14.94
  • K5605-BB Omnipure Inline Sediment Filter

    K5605-BB Omnipure Inline Sediment Filter

    $12.99 Retail Price:  $17.24
  • CQE-RC-04020 Crystal Quest Nitrate Water Filter Cartridge
  • K2305-KK Omnipure Inline Sediment Filters

    K2305-KK Omnipure Inline Sediment Filters

    $11.99 Retail Price:  $24.14
  • Q5405 Omnipure Q-Series Sediment Water Filter

    Q5405 Omnipure Q-Series Sediment Water Filter

    $12.99 Retail Price:  $16.04
  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter

47 Item(s)

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