Call Toll-Free: 1-800-277-3458

My Cart:

0 item(s)

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

Undersink Water Filters & Systems

Transform the water served from your tap or faucet into a premium quality beverage with an under sink water filter.

With over 250+ under sink water filter systems and undersink replacement filters available in a wide range of flow rates, colors/finishes, prices, and filter life’s, we’ve got an undersink filter for every home. Choose from some of the best under sink water filters including the Crystal Quest 7 Stage Under Sink Fluoride Water Filter System, the Culligan® Level-4 Easy Change Undersink Drinking Water System, and the 3M Filtrete™ Undersink Advanced Water Filter System.

Not sure, which under the sink water filter is right for your home? Give us a call 1-800-277-3458; our experts will help you choose the perfect under sink filter to address all of your water quality concerns, no matter how monumentous they may seem.

Note: All of our under sink filters and under sink water filter systems are backed by our 100% Price Match Guarantee. Meaning if you find a particular under sink water filter for less than our listed price, we’ll match the competitors lower price. Shopping for home water filters has never been easier.

Items 1 to 48 of 57 total

Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $14.99
    MSRP: $19.99
    Save 25%
  • Pentek QC10-CB1R Carbon Block Quick Change Filter
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • WGCHD American Plumber Undersink Water Filter Replacement Cartridge
  • PENTEK-EPM-10

    PENTEK-EPM-10

    $9.99
    MSRP: $10.57
    Save 5%
  • PENTEK-GAC-10

    PENTEK-GAC-10

    $12.99
    MSRP: $17.99
    Save 28%
  • PENTEK-GAC-20

    PENTEK-GAC-20

    $17.99
    MSRP: $23.56
    Save 24%
  • PENTEK-GAC-5

    PENTEK-GAC-5

    $14.99
  • PENTEK-GAC-BB

    PENTEK-GAC-BB

    $25.99
  • PENTEK-NCP-10

    PENTEK-NCP-10

    $9.99
    MSRP: $11.95
    Save 16%
  • PENTEK-P-250

    PENTEK-P-250

    $23.99
    MSRP: $28.99
    Save 17%
  • PENTEK-P-250A

    PENTEK-P-250A

    $23.99
    MSRP: $31.27
    Save 23%
  • PENTEK-P5-478

    PENTEK-P5-478

    $6.99
    MSRP: $8.15
    Save 14%
  • PENTEK-PCC-1

    PENTEK-PCC-1

    $41.99
    MSRP: $53.23
    Save 21%
  • PENTEK-PD-5-934

    PENTEK-PD-5-934

    $9.99
  • QC10-CB1 Pentek Undersink Quick-Change Filter System

    QC10-CB1 Pentek Quick-Change Water Filtration System

    $32.95
    MSRP: $40.99
    Save 20%
  • PENTEK-QC10-CBR-JG14

    PENTEK-QC10-CBR-JG14

    $33.99
    MSRP: $35.41
    Save 4%
  • PENTEK-QC10-CBR-THREADED

    PENTEK-QC10-CBR-THREADED

    $30.89
    MSRP: $37.82
    Save 18%
  • PENTEK-QC10-CBRR

    PENTEK-QC10-CBRR

    $22.99
    MSRP: $36.79
    Save 38%
  • PENTEK-QC10-EP

    PENTEK-QC10-EP

    $27.05
    MSRP: $34.26
    Save 21%
  • PENTEK-QC10-EPR

    PENTEK-QC10-EPR

    $23.99
    MSRP: $27.70
    Save 13%
  • PENTEK-QC10-GAC

    PENTEK-QC10-GAC

    $22.99
    MSRP: $30.69
    Save 25%
  • QC10-GACR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • QC10-TSGAC Pentek Undersink Quick-Change Filter System

    QC10-TSGAC Pentek Quick-Change Water Filter Cartridge

    $25.69
    MSRP: $31.84
    Save 19%
  • PENTEK-QC10-TSGACR

    PENTEK-QC10-TSGACR

    $19.99
    MSRP: $21.84
    Save 8%
  • PENTEK-R30-478

    PENTEK-R30-478

    $8.99
    MSRP: $12.75
    Save 29%
  • PENTEK-SLIM-14-WPR5

    PENTEK-SLIM-14-WPR5

    $12.99
    MSRP: $17.24
    Save 25%
  • PENTEK-SLIM-38-PR5

    PENTEK-SLIM-38-PR5

    $12.39
    MSRP: $16.55
    Save 25%
  • PENTEK-SLIM-CLEAR-14-WPR5
  • PENTEK-SLIM-PR10-JG38

    PENTEK-SLIM-PR10-JG38

    $11.29
    MSRP: $15.28
    Save 26%
  • PENTEK-TSGAC-10

    PENTEK-TSGAC-10

    $20.99
    MSRP: $24.60
    Save 15%
  • US-1000 Pentek Undersink Filter System

    US-1000 Pentek Undersink Filter System

    $126.99
    MSRP: $139.71
    Save 9%
  • US-1500 Pentek Undersink Filter System with Monitor

    US-1500 Pentek Undersink Filter System with Monitor

    $166.99
    MSRP: $195.37
    Save 15%
  • PENTEK-153017

    PENTEK-153017

    $11.29
    MSRP: $15.28
    Save 26%
  • PENTEK-153018

    PENTEK-153018

    $18.99
    MSRP: $21.84
    Save 13%
  • PENTEK-153029

    PENTEK-153029

    $32.99
  • PENTEK-153128

    PENTEK-153128

    $19.99
    MSRP: $23.56
    Save 15%
  • PENTEK-158008

    PENTEK-158008

    $12.79
    MSRP: $16.55
    Save 23%
  • PENTEK-158110

    PENTEK-158110

    $18.99
    MSRP: $22.41
    Save 15%
  • PENTEK-158117

    PENTEK-158117

    $18.99
  • PENTEK-158642

    PENTEK-158642

    $19.99
  • PENTEK-158643

    PENTEK-158643

    $24.99
    MSRP: $25.98
    Save 4%
  • PENTEK-3G-SLIM-38-NPT10
  • PENTEK-BFS-201

    PENTEK-BFS-201

    $53.99
    MSRP: $56.80
    Save 5%
  • PENTEK-C1

    PENTEK-C1

    $12.99
  • PENTEK-C2

    PENTEK-C2

    $7.99
    MSRP: $8.84
    Save 10%
  • PENTEK-CBC-5

    PENTEK-CBC-5

    $9.99
    MSRP: $16.55
    Save 40%
  • CBR2-10 Pentek Undersink Filter Replacement Cartridge

Items 1 to 48 of 57 total

Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
Scroll To Top