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The Karran Q-315 is a single-bowl bar and prep sink in a matte black quartz composite finish, built to undermount cleanly into laminate, solid surface, or granite countertops. Its square bowl fits a tight footprint without giving up usable depth.
A square single-bowl sink at this scale is the right tool for a wet bar, a kitchen island prep station, or a butler's pantry where a full kitchen sink would overwhelm the cabinet run. The 8-inch bowl depth handles ice buckets, colanders, and bar glasses without a second thought, and the undermount profile keeps the counter surface continuous so spills wipe straight in.
The Q-315 is made from quartz composite, a dense, engineered material that carries the black finish all the way through rather than as a coating over a base material. The matte surface texture keeps water spots and fingerprints from reading as sharply as they would on a gloss finish, which is a practical advantage in a bar or prep context where the sink sees heavy daily use. The quartz body also takes heat and rapid temperature swings without warping or crazing.
Designers specifying a black hardware package find that a matte black sink closes the look in a way a stainless or white bowl cannot. Cabinet shops and contractors working on bar cabinetry or island builds choose it where the countertop is laminate, solid surface, or granite and the client wants a consistent dark palette. Homeowners renovating a wet bar or adding an island prep station get a certified, code-ready fixture that fits a 21-inch minimum cabinet without custom millwork. It is not the right call for a main kitchen sink, but for a secondary bowl in a well-planned layout, the compact square footprint and matte black finish earn their place.
Yes. The Q-315 is designed to undermount into laminate, solid surface, and granite countertops. Confirm the laminate fabrication method with your countertop installer, since undermounting into laminate requires an edge treatment suited to it.
The minimum cabinet width required is 21 inches. The overall sink footprint is 16-5/8 inches square, but the cabinet needs the additional clearance for the undermount clip or adhesive installation.
It goes all the way through. Quartz composite carries the color through the entire body, so chips or nicks at the bowl edge do not expose a different base color underneath.
The Q-315-BL is cUPC and IAPMO certified, meeting the plumbing code compliance requirements for residential and light commercial installation in the United States and Canada.
When the hardware is dark and the palette calls for it, this compact quartz undermount sink keeps the bar or prep station cohesive and code-ready from the first install.
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