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The Karran Q-309-CN is a single-bowl quartz vanity sink in a Concrete finish that mounts beneath the countertop for a clean, rimless look in bathroom vanity installations.
Concrete as a finish reads differently than a neutral white or a warm bisque. It leans toward the cooler, heavier end of the palette and pairs naturally with matte black fixtures, brushed metals, raw wood, and other materials common in industrial, modern farmhouse, and contemporary bathroom designs. In a remodel where the countertop and vanity are being specified together, the Concrete finish gives designers and homeowners a way to anchor the sink as a visual element rather than recessing it into the background. Because this is a quartz composite rather than actual concrete, it delivers that look without the weight, sealing requirements, or surface vulnerability of real cast concrete.
The Q-309-CN is built from quartz composite, an engineered material that combines quartz with resin to produce a dense, consistent body throughout. The Concrete finish is part of the material itself, not a surface coating, so the color holds up without refinishing or resealing. The undermount profile keeps the sink rim hidden beneath the countertop, which makes the counter-to-bowl transition seamless and simplifies daily cleaning since there is no exposed rim to trap water or residue.
This sink is designed for vanity applications requiring a 24-inch minimum cabinet width. It undermounts into laminate, solid surface, or granite countertops and is not rated for top-mount installation. Like other Karran undermount quartz sinks, it is intended for new countertop installations rather than an existing countertop with a cutout already in place. Verify the cabinet width and countertop material against these requirements before specifying. A standard vanity drain assembly fits the 1-3/4 inch drain opening.
This sink is designed for new countertop installations. It is not intended to drop into an existing countertop with an existing cutout already fabricated for a different sink.
It is designed to undermount into laminate, solid surface, and granite countertops. It is undermount only and may not be top mounted.
The Concrete finish is integral to the quartz composite body, not a painted or applied coating on top. The color runs through the material and does not require sealing or refinishing.
The drain opening is 1-3/4 inches, sized for a standard vanity drain assembly. The drain is not included with the sink.
For a vanity where the sink finish is part of the design statement, the Q-309-CN delivers a concrete aesthetic in a durable quartz composite that installs cleanly beneath the countertop and stays looking that way.
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