Bold Black Finish, Precise Undermount Fit

The Karran Q-306-BL is a single-bowl quartz vanity sink in Black that undermounts into laminate or solid surface vanity tops for a clean, rimless installation.

Key Features

• Black quartz composite body that holds its color through the material, not just on the surface.
• Undermount installation designed specifically for laminate and solid surface vanity tops.
• Single oval bowl with a 17 inch interior length, 13 inch interior width, and 5-1/2 inch depth.
• Requires a minimum 21-inch cabinet width for proper fitment and clearance.
• 1-3/4 inch drain opening for standard vanity drain hardware.
• cUPC certified for compliance with North American plumbing standards.

Where Black Works Hardest

A black sink does more than follow a color trend. In a bathroom with white or light-colored countertops, a matte black bowl creates deliberate contrast that anchors the vanity visually. In a darker, moody bath with charcoal tile or deep-stained cabinetry, it disappears into the palette and lets the other materials lead. Either way, the undermount profile keeps the counter surface unbroken around it, which makes the color statement cleaner and cleanup easier since there is no rim lip to trap water or soap residue.

Quartz Composite Construction

This sink is built from quartz composite, a dense engineered material that gives the bowl a consistent Black finish all the way through rather than a surface coating over a base material. The quartz composite body resists the everyday wear of a bathroom sink: toothpaste, soap, and cosmetics are less likely to penetrate or stain a non-porous surface, and the material holds up to regular cleaning without degrading the finish.

Planning the Vanity Install

This sink is designed for laminate and solid surface vanity tops, not stone countertops. It is undermount only, so the countertop needs to be fabricated or prepped to accept an undermount bowl before installation. A minimum cabinet width of 21 inches is required. Because it is built into the countertop from below, it is most practical to plan this sink into a new vanity top or a top being replaced rather than retrofitting it into an existing cutout. It suits a master bath, guest bath, or powder room where the vanity top is being specified fresh. The cUPC certification confirms it meets North American plumbing code requirements.

Common Questions

A Black Sink That Stays Sharp

Choose the Karran Q-306-BL for a vanity build where a bold, clean-edged black bowl is part of the design plan and the top is laminate or solid surface.