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The Karran QTWS-875-BL is a single-bowl top mount workstation sink in a Black quartz finish that drops into virtually any countertop material, making it a flexible choice for new builds and renovations alike.
A workstation sink goes beyond basic washing by providing a built-in ledge around the bowl where colanders, cutting boards, and sink grids rest at counter height. That ledge turns the sink basin into an active prep zone rather than just a drain point. With a 30-inch interior bowl length and 9-inch depth, this sink handles large cookware and roasting pans without overflow. The Black finish anchors the look of a dark-accented or two-tone kitchen, and because the top mount rim sits on top of the countertop rather than hiding beneath it, installation does not require the precision stone fabrication that undermount sinks demand.
The sink body is quartz composite, an engineered material that combines natural quartz with resin to produce a dense, matte surface in a through-body Black color. The matte Black surface resists showing water spots and everyday surface wear in a way that polished finishes do not. The color runs through the material rather than sitting as a surface coating, so chips at the rim or bowl edge do not expose a contrasting substrate. The workstation ledge is formed from the same quartz composite, so the surface texture and color remain uniform across the entire sink.
This sink suits any kitchen where the countertop material is already decided and the installer wants a drop-in format without restricting countertop options. Because it is designed for all countertop materials, it works equally well in a laminate renovation, a butcher block island, or a stone-topped kitchen. Designers specifying a dark-themed kitchen with Black fixtures and hardware will find the quartz finish coordinates without competing. Cabinet shops and contractors fitting standard-depth base cabinets can plan the install around the 33-inch minimum cabinet width, which aligns with a standard 36-inch base cabinet. Homeowners upgrading from a basic drop-in to a workstation format get the prep-surface expansion without changing the countertop.
Yes. This sink is designed for all countertop materials, so laminate, solid surface, quartz, granite, and butcher block are all compatible installation surfaces.
The ledge accepts compatible Karran workstation accessories such as colanders, cutting boards, and sink grids. Confirm accessory compatibility with the QTWS-875-BL model before ordering.
No. This sink is not ADA compliant. If ADA compliance is a project requirement, select a model rated for that specification.
The sink is cUPC certified, which satisfies plumbing code requirements in both the United States and Canada.
Choose this Black quartz workstation sink for a deep single bowl and an integrated prep ledge that drops into any countertop material without the fabrication requirements of an undermount install.
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