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

My Cart:

0 item(s)
You have no items in your shopping cart.

Free Shipping over $39

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

Keep your kitchen space neat and tidy, while reducing contaminants in your tap water with an under sink water filter system.

The beauty of under sink water filter systems is that they neatly fit underneath your sinks and don’t rob you of valuable counter space as countertop water filters do. Unlike other filter models, with under sink water filters there are no valves or tubing cluttering your counter. Because they remain out of sight, you can install larger under sink water filter models designed to filter out additional water contaminants such as fluorides, arsenic, and nitrates.

Below you’ll find over 60+ OEM under sink water filter systems, housings and filters from some of the top brands, including Pentek®, Culligan®, Whirlpool®, Doulton®, OmniFilter®, and more.

Need help choosing the right under sink water filter system? Our experts can help you choose the perfect under sink water filter to address all of your water quality concerns, just give us a call at 1-800-277-3458.

Items 1 to 48 of 58 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 Retail Price:  $19.99
  • Pentek QC10-CB1R Carbon Block Quick Change Filter

    Pentek QC10-CB1R Carbon Block Quick Change Filter

    $22.99 Retail Price:  $31.04
  • 153017 Pentek Slim Line Filter Housing Sump - Blue

    153017 Pentek Slim Line Filter Housing Sump - Blue

    $11.29 Retail Price:  $15.28
  • 153018 Pentek Slim Line Filter Housing Sump - Clear

    153018 Pentek Slim Line Filter Housing Sump - Clear

    $18.99 Retail Price:  $21.84
  • 153029 Pentek Filter Housing Sump

    153029 Pentek Filter Housing Sump

    $32.99 Retail Price:  $40.24
  • 153128 Pentek Filter Housing Sump - Clear

    153128 Pentek Filter Housing Sump - Clear

    $19.99 Retail Price:  $23.56
  • 158642 Pentek Slim Line Filter Housing - Blue

    158642 Pentek Slim Line Filter Housing - Blue

    $19.99 Retail Price:  $25.29
  • 158117 Pentek Slim Line Filter Housing - Clear

    158117 Pentek Slim Line Filter Housing - Clear

    $18.99 Retail Price:  $24.14
  • 158110 Pentek Filter Housing - Clear

    158110 Pentek Filter Housing - Clear

    $18.99 Retail Price:  $22.41
  • US-1500 Pentek Undersink Filter System with Monitor
  • US-1000 Pentek Undersink Filter System

    US-1000 Pentek Undersink Filter System

    $126.99 Retail Price:  $139.71
  • TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    $19.39 Retail Price:  $24.60
  • P10-5 Tier1 Polypropylene Sediment Filter

    P10-5 Tier1 Polypropylene Sediment Filter

    Regular Price: $2.99

    Special Price: $2.55

  • 150550 Pentek 3G Whole House Filter System

    150550 Pentek 3G Whole House Filter System

    $25.99 Retail Price:  $35.64
  • EP-5 Pentek Replacement Filter Cartridge

Items 1 to 48 of 58 total

Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
Scroll To Top