Karran Quartz Undermount Sink for a Black-Accented Kitchen

This Karran single-bowl undermount kitchen sink is built from quartz composite and finished in Black, designed to mount beneath granite, quartz, or solid surface countertops in a 36-inch or wider base cabinet.

Key Features

• Single bowl configuration with a 31-inch interior length and 9-inch depth for full-size pots and sheet pans.
• Quartz composite material in a Black finish that holds its color through daily use.
• Undermount installation into granite, quartz, or solid surface countertops only.
• Requires a minimum 36-inch base cabinet to fit the 33-1/2-inch overall width.
• 3-1/2-inch drain opening to accept a standard waste assembly.
• cUPC and IAPMO certified for plumbing compliance.

One Deep Bowl for a Workhorse Kitchen

A single bowl this size removes the center divider that makes it awkward to wash a large stockpot or a full sheet pan. The 31-inch interior length and 9-inch depth give a lot of usable basin space, so the sink keeps up with heavy prep and cleanup without requiring the layout adjustments a divided bowl demands. The Black finish makes it a natural fit in kitchens built around dark cabinetry, matte black fixtures, or high-contrast countertop-and-cabinet combinations where a stainless or white bowl would break the palette.

Quartz Composite Built for the Color

The sink body is quartz composite, a dense material that carries color through its full depth rather than relying on a surface coating. Black sinks in a thinner or coated material can show wear at the edges or corners over time; the quartz makeup here means the Black goes all the way through. The undermount design keeps the sink rim below the countertop surface, so the counter edge runs clean to the bowl and wipe-down is straightforward. Because the rim is concealed by the countertop, the material of that countertop matters: this sink mounts into granite, quartz, and solid surface, which support the undermount bond. It is not designed for laminate or tile.

Where This Sink Works Best

This is the right call for a primary kitchen sink in a new build or a full remodel where the countertop is being fabricated new. The undermount method requires the sink to be set before the countertop is finished, so it is not a drop-in replacement for an existing cutout. Designers specifying a dark kitchen with a stone or engineered-stone counter will find the Black quartz composite a consistent material choice that reads as intentional rather than incidental. Cabinet shops building out kitchens with 36-inch sink bases can plan around the 33-1/2-inch footprint. Contractors working on new countertop installs can confirm fit against the 21-inch front-to-back dimension before the counter goes down.

Common Questions

A Black Quartz Bowl Built to Anchor the Kitchen

Choose this sink when the design calls for a bold, single-bowl undermount in a Black quartz finish that ties into dark cabinetry and stone countertops without compromise.