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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.

Items 1 to 48 of 69 total

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  • F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)
  • K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    $19.05 Retail Price:  $27.59
  • Pentek 255579-43 Inline Sediment Water Filter Replacement
  • DUPONT-WFQTC90001
  • K5666-KK Omnipure Inline Fluoride Filter

    K5666-KK Omnipure Inline Fluoride Filter

    $38.99 Retail Price:  $50.99
  • K2528-KK Omnipure GAC Inline Water Filter

    K2528-KK Omnipure GAC Inline Water Filter

    $11.99 Retail Price:  $17.99
  • WIC-6A American Plumber Inline Icemaker Filter

    WIC-6A American Plumber Inline Icemaker Filter

    $13.99 Retail Price:  $14.94
  • WICA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • WICSA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • 3M Aqua-Pure APIL3R Inline Water Filter

    APIL3R 3M Aqua-Pure Inline Water Filter Cartridge

    $40.99 Retail Price:  $45.41
  • 74-985001 3M Aqua-Pure Male Connection

    74-985001 3M Aqua-Pure Quick-Connect Male Connection

    $3.99 Retail Price:  $5.74
  • IC-100A Culligan Level 1 Disposable Inline Filter

    IC-100A Culligan Level 1 Disposable Inline Filter

    $12.99 Retail Price:  $16.78
  • US-600 Culligan Slim Undersink Filter System

    US-600 Culligan Slim Undersink Filter System

    $35.99 Retail Price:  $41.39
  • HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    $35.99 Retail Price:  $43.69
  • HF20-S Cuno Whole House Filter Replacement Cartridge

    HF20-S Cuno Whole House Filter Replacement Cartridge

    $68.99 Retail Price:  $86.24
  • DD-7098 Daewoo Inline Filter

    DD-7098 Daewoo Inline Filter

    $28.99 Retail Price:  $31.34
  • GS-10RO-H-38 Desal Reverse Osmosis Carbon Post Filter

    GS-10RO-H-38 Desal Reverse Osmosis Carbon Post Filter

    $17.99 Retail Price:  $20.69
  • TFM-50EB Desal Encapsulated Reverse Osmosis Membrane

    TFM-50EB Desal Encapsulated Reverse Osmosis Membrane

    $69.99 Retail Price:  $82.79
  • TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    $49.99 Retail Price:  $59.79
  • TLC-150EB Desal Encapsulated Reverse Osmosis Membrane
  • GXRLQ GE SmartWater Inline Filter System

    GXRLQ GE SmartWater Inline Filter System

    $33.99 Retail Price:  $36.79
  • GXRLQR GE SmartWater Inline Filter Replacement Cartridge

    GXRLQR GE SmartWater Inline Filter Replacement Cartridge

    $32.99 Retail Price:  $34.99
  • GXRTDR GE SmartWater Inline Filter Cartridge

    GXRTDR GE SmartWater Inline Filter Cartridge

    $18.99 Retail Price:  $20.69
  • GXRTQR GE SmartWater Inline Filter Replacement Cartridge

    GXRTQR GE SmartWater Inline Filter Replacement Cartridge

    $19.99 Retail Price:  $31.99
  • 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-6Q Hydronix Inline Coconut Carbon Filter

    ICF-6Q Hydronix Inline Coconut Carbon Filter

    $6.99 Retail Price:  $10.34
  • GS-10-JG14 Pentek Inline Filter System

    GS-10-JG14 Pentek Inline Water Filtration System

    $12.99 Retail Price:  $15.28
  • GS-10ALS-JG14 Pentek Inline Filter System

    GS-10ALS-JG14 Pentek Inline Water Filter

    $13.39 Retail Price:  $17.70
  • R200 OmniFilter Inline Filter System

    R200 OmniFilter Inline Water Filtration System

    $14.99 Retail Price:  $16.09
  • WHKF-IMPLUS Whirlpool Inline Filter System
  • WHKF-IMTO Whirlpool Inline Filter

    WHKF-IMTO Whirlpool Inline Filter

    $11.99 Retail Price:  $14.94
  • GXRTQ GE SmartWater Inline Filter System
  • R800 OmniFilter Quick Change Inline Refrigerator Filter

    R800 OmniFilter Quick Change Inline Filter

    $28.99 Retail Price:  $35.64
  • U30 OmniFilter Whole House Water Filter System

    U30 OmniFilter Whole House Water Filtration System

    $68.99 Retail Price:  $81.64
  • ELF-NV-HEAD-DK7-P6 Omnipure Inline Filter Head

    ELF-NV-HEAD-DK7-P6 Omnipure Inline Water Filter Head

    Regular Price: $12.99

    Special Price: $11.05

  • K2333-JJ Omnipure Inline Filter

    K2333-JJ Omnipure Inline Filter

    $10.99 Retail Price:  $13.79
  • K2333-KK Omnipure Inline Filter

    K2333-KK Omnipure Inline Filter

    $12.99 Retail Price:  $13.79
  • K2505-JJ Omnipure Sediment Inline Filter

    K2505-JJ Omnipure Sediment Inline Filter

    $12.99 Retail Price:  $16.09
  • K2515-JJ Omnipure Lead Cyst Inline Filter

    K2515-JJ Omnipure Lead Cyst Inline Filter

    $19.99 Retail Price:  $25.29
  • K2520-JJ Omnipure Inline Filter

    K2520-JJ Omnipure Inline Filter

    $18.99 Retail Price:  $24.14
  • K2528-JJ Omnipure Inline Filter

    K2528-JJ Omnipure Inline Filter

    $9.99 Retail Price:  $13.79
  • K2533JJ Omnipure Water Filter

    K2533JJ Omnipure Water Filter

    $11.99 Retail Price:  $13.79
  • K2533-KK Omnipure Inline Filter

    K2533-KK Omnipure Inline Filter

    $13.99 Retail Price:  $14.94
  • K2540-JJ Omnipure Inline Coconut Carbon Filter

    K2540-JJ Omnipure Inline Coconut Carbon Filter

    $11.99 Retail Price:  $16.09

Items 1 to 48 of 69 total

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