A 33-1/2 Inch Quartz Undermount Sink for Concrete-Look Kitchens

This Karran quartz kitchen sink is a double equal-bowl undermount designed for kitchens where the countertop and color palette lean into concrete, stone, and industrial-leaning neutrals. It mounts beneath quartz, granite, or solid surface countertops and carries a Concrete finish throughout the composite body.

Key Features

• Concrete finish quartz composite body that carries the color through the material, not just on the surface.
• Equal 50/50 double bowl with two basins, each 9 inches deep, for separating washing and rinsing or food prep and cleanup.
• Undermount installation into quartz, granite, or solid surface countertops, with a minimum 36-inch cabinet width required.
• 3-1/2 inch drain openings sized for standard basket strainer and disposal flange hardware.
• cUPC and IAPMO certified for plumbing code compliance in most North American jurisdictions.
• Sold as a kit with the components needed for installation included in the package.

Two Equal Bowls Under a Clean Counter Edge

Mounting under the countertop eliminates the rim at the bowl edge, which means the counter surface runs flush to the basin and crumbs or pooled water wipe straight in. With two equally sized bowls, one side can soak while the other stays clear, or a cook can keep produce prep separate from dishes without rearranging the workspace. Each bowl is 9 inches deep, which handles a full Dutch oven or stockpot without crowding.

Quartz Composite in a Concrete Finish

The sink is built from quartz composite, a dense engineered material that gives the basin a consistent color and texture through its depth rather than a surface coating that can chip or wear away. The Concrete finish reads as a warm mid-tone gray with a matte character, which coordinates naturally with raw concrete countertops, honed stone, gray quartz slabs, and industrial-style cabinet palettes. Unlike actual poured concrete, the quartz composite body will not require sealing and holds its surface character under daily kitchen use.

Where This Sink Fits the Project

This is the right sink for a kitchen remodel or new build where the countertop is quartz, granite, or solid surface and the design direction calls for a grounded, material-honest look. The Concrete finish gives designers a neutral anchor that works behind stainless appliances, black hardware, open shelving with a raw wood shelf, or a two-tone cabinet scheme where the lower cabinets carry a darker paint. Cabinet shops specifying for a client build should confirm the base cabinet is at least 36 inches wide before ordering. Because this is an undermount, it requires a new countertop fabrication; it is not a drop-in replacement for an existing sink cutout.

Common Questions

A Concrete-Finish Sink Built to Last Under the Counter

Choose this Karran quartz double-bowl sink when the project calls for a durable undermount basin that brings the concrete aesthetic into the kitchen without any of the maintenance that actual concrete demands.