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.

Clear All
Compare

Items 1 to 48 of 105 total

Page:
  1. 1
  2. 2
  3. 3

Grid  List 

Set Descending Direction
  • IHS22-D4 Trojan UV Disinfection System
  • Hydronix HF2-10CLWH12 Clear 10 inch Filter Housing
  • VH410M Viqua Home Plus UltraViolet Water Disinfection System

    VH410M Viqua Home Plus UltraViolet Water Disinfection System

    $839.00
    MSRP: $1,125.00
    Save 25%

    Out of stock

  • VIQUA-E4
  • VIQUA-E4+
  • VIQUA-E4-V
  • 150564 Pentek Whole House Water Filter System (Clear/ Blue)
  • 150072 Pentek 3/4-inch #10 Standard Blue/Clear Filter Housing
  • 158098 Pentek Slim Line Water Filter Housing System

    158098 Pentek Slim Line Water Filter Housing System

    $15.99
    MSRP: $19.99
    Save 20%
  • 158203 Pentek Slim Line Black/Blue w/PR Water Filter System
  • Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Hydronix HF45-10BLBK15 Filter Housing (Blue)

    $59.99
    MSRP: $75.99
    Save 21%
  • HFPP-34-PR-20 Pentek Big Blue Whole House 20 inch Filter (6-Pack)
  • HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter (6-Pack)
  • HF2-10BLBK12 Hydronix Whole House Filter Housing

    HF2-10BLBK12 Hydronix Whole House Filter Housing

    $16.99
    MSRP: $24.99
    Save 32%
  • HF2-10CLBK12 Hydronix Clear Whole House Filter Housing

    HF2-10CLBK12 Hydronix Clear Whole House Filter Housing

    $17.99
    MSRP: $25.99
    Save 31%
  • PL44-122NAC15 Pentek Bag Filter Housing - Carbon Steel
  • MPST-1 Pentek Multi-Purpose Cartridge and Bag Filter Housing - Stainless Steel
  • W385-PR American Plumber Undersink Compact Filter System

    W385-PR American Plumber Undersink Compact Filter System

    $19.99
    MSRP: $28.74
    Save 30%
  • 3M Aqua-Pure AP431 Inline Filter Replacement Cartridge

    AP431 3M Aqua-Pure Inline Filter Replacement Cartridge

    $30.99
    MSRP: $49.56
    Save 37%
  • 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    $31.99
    MSRP: $34.49
    Save 7%
  • 3M Aqua-Pure AP917R Water Filter Cartridge
  • W9320004 Doulton HIS Undersink Water Filtration System

    W9320004 Doulton HIS Undersink Water Filtration System

    $127.00
    MSRP: $235.99
    Save 46%
  • OB5-S-05 OmniFilter Whole House Filter System

    OB5-S-05 OmniFilter Whole House Water Filtration System

    $29.99
    MSRP: $36.79
    Save 18%

    Out of stock

  • HFPP-34-PR-20 Pentek Big Blue Whole House 20 inch Filter Housing
  • HFPP-1-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
  • HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter Housing
  • IC-101L Pentek Inline Filter
  • PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  • ST-1 Pentek Filter Housing - Stainless Steel

    ST-1 Pentek Filter Housing - Stainless Steel

    $167.99
    MSRP: $191.81
    Save 12%
  • ST-2 Pentek Filter Housing - Stainless Steel

    ST-2 Pentek Filter Housing - Stainless Steel

    $239.89
    MSRP: $368.99
    Save 35%

    Out of stock

  • ST-3 Pentek Filter Housing - Stainless Steel

    ST-3 Pentek Filter Housing - Stainless Steel

    $283.99
    MSRP: $345.79
    Save 18%

    Out of stock

  • ST-BC-8 Pentek Filter Housing - Stainless Steel
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $13.19
    MSRP: $20.99
    Save 37%
  • 650683 Trojan UV Max UV Water Purification System
  • 650686 Trojan UV Max UV Water Purification System
  • 650690 Trojan UV Max UV Water Purification System
  • 650692 Trojan UV Max UV Water Purification System
  • 650695 Trojan UV Max UV Water Purification System
  • BF7-S-05 OmniFilter Undersink Filter System

    BF7-S-05 OmniFilter Undersink Water Filtration System

    $69.99
    MSRP: $82.79
    Save 15%

    Out of stock

  • OB1-S-05 OmniFilter Undersink Filter System
  • CL10PF5-B Omnipure Sediment Inline Filter

    CL10PF5-B Omnipure Sediment Inline Filter

    $14.29
    MSRP: $19.99
    Save 29%
  • CL10ROT33-B Omnipure Inline Filter

    CL10ROT33-B Omnipure Inline Filter

    $12.19
    MSRP: $16.99
    Save 28%
  • CL10ROT33-C Omnipure Inline Filter

    CL10ROT33-C Omnipure Inline Filter

    $9.99
    MSRP: $13.79
    Save 28%

    Out of stock

  • CL10ROT40-B Omnipure Inline Coconut Carbon Filter

    CL10ROT40-B Omnipure Inline Coconut Carbon Filter

    $11.09
    MSRP: $21.99
    Save 50%
  • CL10ROT40-C Omnipure Inline Coconut Carbon Filter

    CL10ROT40-C Omnipure Inline Coconut Carbon Filter

    $8.99
    MSRP: $12.64
    Save 29%
  • CL6ROT33-B Omnipure Inline Filter

    CL6ROT33-B Omnipure Inline Filter

    $11.09
    MSRP: $16.99
    Save 35%

    Out of stock

  • CL6ROT33-C Omnipure Inline Filter

    CL6ROT33-C Omnipure Inline Filter

    $8.89
    MSRP: $15.99
    Save 44%
  • 158319 Pentek Slim Line High Temp Filter Housing - Black

    158319 Pentek Slim Line High Temp Filter Housing - Black

    $63.99
    MSRP: $66.34
    Save 4%

    Out of stock

Items 1 to 48 of 105 total

Page:
  1. 1
  2. 2
  3. 3

Grid  List 

Set Descending Direction
Scroll To Top