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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 145 to 192 of 244 total

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  • CULLIGAN-D-40

    CULLIGAN-D-40

    $29.99 Retail Price:  $38.51
  • CULLIGAN-D-30

    CULLIGAN-D-30

    $18.99 Retail Price:  $21.26
  • AQUA-PURE-EP35R

    AQUA-PURE-EP35R

    $92.99 Retail Price:  $123.04
  • AP22 Aqua-Pure Undersink Filter Replacement Cartridge
  • AQUAPURE-C-CYST-FF

    AQUAPURE-C-CYST-FF

    $48.99 Retail Price:  $56.34
  • AQUAPURE-C-CS-S

    AQUAPURE-C-CS-S

    $37.99 Retail Price:  $42.54
  • AQUAPURE-C-CS-FF

    AQUAPURE-C-CS-FF

    $40.99 Retail Price:  $48.06
  • AQUAPURE-C-COMPLETE

    AQUAPURE-C-COMPLETE

    $65.99 Retail Price:  $88.54
  • AQUAPURE-AP-DW85

    AQUAPURE-AP-DW85

    $46.99 Retail Price:  $55.19
  • AQUAPURE-AP-DW80-90

    AQUAPURE-AP-DW80-90

    $109.99 Retail Price:  $137.99
  • AQUAPURE-AP-DW70

    AQUAPURE-AP-DW70

    $55.99 Retail Price:  $56.34
  • AP-C78 Aqua-Pure Undersink Filter Replacement Cartridge
  • AP-C77 Aqua-Pure Undersink Filter Replacement Cartridge
  • AP517 Aqua-Pure Undersink Filter Replacement Cartridge
  • AQUA-PURE-AP410

    AQUA-PURE-AP410

    $57.99 Retail Price:  $71.29
  • DOULTON-W9121020

    DOULTON-W9121020

    $30.99 Retail Price:  $36.02
  • PENTEK-SLIM-CLEAR-14-WPR5
  • P5-478 Pentek Undersink Filter Replacement Cartridge

    P5-478 Pentek Undersink Filter Replacement Cartridge

    $5.99 Retail Price:  $8.15
  • PENTEK-P1

    PENTEK-P1

    $4.99 Retail Price:  $7.00
  • P-250A Pentek Undersink Filter Set

    P-250A Pentek Undersink Filter Set

    $23.99 Retail Price:  $31.27
  • PENTEK-P-250

    PENTEK-P-250

    $23.99 Retail Price:  $31.84
  • NCP-10 Pentek Undersink Filter Replacement Cartridge
  • GAC-BB Pentek Replacement Filter Cartridge

    GAC-BB Pentek Replacement Filter Cartridge

    $22.99 Retail Price:  $32.19
  • PENTEK-GAC-5

    PENTEK-GAC-5

    $8.19 Retail Price:  $11.72

Items 145 to 192 of 244 total

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