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Replacement Water Filters: Undersink

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.

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  • KX-MATRIKX-PB1-10
  • KX-MATRIKX-1-10

    KX-MATRIKX-1-10

    $10.99 Retail Price:  $14.94
  • OMNIFILTER-RS19

    OMNIFILTER-RS19

    $14.99
  • OMNIPURE-OMB934-1L

    OMNIPURE-OMB934-1L

    $14.99 Retail Price:  $21.38
  • PENTEK-CCBC-10

    PENTEK-CCBC-10

    $15.99 Retail Price:  $19.31
  • PENTEK-CC-10

    PENTEK-CC-10

    $12.99
  • CBR2-10R Pentek Undersink Filter Replacement Cartridge
  • PENTEK-CBR2-10

    PENTEK-CBR2-10

    $16.99 Retail Price:  $18.85
  • PENTEK-CBC-5

    PENTEK-CBC-5

    $11.99 Retail Price:  $16.55
  • Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge
  • PENTEK-TSGAC-10

    PENTEK-TSGAC-10

    $19.39 Retail Price:  $24.60
  • QC10-TSGACR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • D-25 Culligan Under Sink Water Filter

    D-25 Culligan Under Sink Water Filter

    $11.99 Retail Price:  $16.99
  • CMB-510-HF Advanced Water Products 10-inch x 4.5-inch Replacement Sediment Filter
  • DUPONT-WFDWC20001

    DUPONT-WFDWC20001

    $14.99 Retail Price:  $22.33
  • E5520-K Omnipure Water Filter

    E5520-K Omnipure Water Filter

    $17.99 Retail Price:  $49.99
  • CB1

    CB1

    $19.99 Retail Price:  $25.29
  • CULLIGAN-D-20

    CULLIGAN-D-20

    $10.95 Retail Price:  $13.79
  • CULLIGAN-D-15

    CULLIGAN-D-15

    $17.99 Retail Price:  $25.29
  • CULLIGAN-D-10-TWIN

    CULLIGAN-D-10-TWIN

    $11.99 Retail Price:  $17.93
  • CULLIGAN-750R-D

    CULLIGAN-750R-D

    $15.99 Retail Price:  $17.93
  • FXUTC GE SmartWater Undersink Filter Replacement Cartridge
  • PENTEK-GAC-10

    PENTEK-GAC-10

    $10.99 Retail Price:  $12.98
  • FILTRETE-4US-MAXS-F01

    FILTRETE-4US-MAXS-F01

    $19.99 Retail Price:  $25.29
  • CULLIGAN-D-30

    CULLIGAN-D-30

    $18.99 Retail Price:  $21.26

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