An Undermount Sink Built For Split-Station Kitchens
The Karran QU-811-GR is a quartz composite undermount kitchen sink with a large/small bowl layout, designed for kitchens that run two simultaneous tasks — washing on one side, prepping or draining on the other. It mounts beneath granite, quartz, and solid surface countertops with a flat concealed rim, leaving the counter edge clean and uninterrupted.
Key Features
• 80% quartz, 20% acrylic resin construction delivers a dense, non-porous bowl that stands up to heavy daily use.
• 60/40 large/small bowl configuration pairs a generous primary wash basin with a compact secondary bowl for prep, rinsing, or disposal.
• Flat undermount rim sits flush beneath the countertop for a clean edge with no visible rim from above.
• Gray finish blends with concrete, stone, and painted kitchen palettes without competing with other surfaces.
• Scratch, stain, chip, and heat resistant quartz composite surface holds up to pots, knives, and cleaning products.
• Faucet mounts through the countertop, not the sink — no deck drillings on the sink itself.
Where This Sink Earns Its Keep
The 60/40 layout is the right call when the kitchen sees serious use. The large bowl handles stock pots, cutting boards laid flat to rinse, and sheet pans; the smaller bowl keeps a colander in place, controls rinse water, or provides clearance for a garbage disposal without sacrificing the full primary basin. For a household that cooks daily or a design-build client specifying a practical kitchen rather than a showcase one, the split configuration does more work than a single bowl without requiring the cabinet footprint of a full equal-double setup.
Because the faucet drills through the countertop rather than through a sink deck, this sink pairs cleanly with one- or three-hole faucet configurations depending on the stone or solid surface layout — no compromise on faucet selection or placement.
Quartz Composite Construction in Gray
Quartz composite is not a surface coating. The bowl is solid through — 80% natural quartz crystals bound in 20% acrylic resin — so the resistance to scratching, staining, chipping, and moderate heat runs through the material, not just across the top layer. Gray is one of the more versatile neutral finishes in this line: it pairs with white shaker cabinetry, reads as warm next to concrete-look countertops, and coordinates with brushed nickel or matte black faucet hardware without a match-exactly commitment. The undermount rim profile keeps the countertop edge the visual focal point rather than the sink itself.
Who Specifies This Sink
Cabinet shops finishing out a kitchen package will find the QU-811-GR straightforward to spec: it undermounts into granite, quartz, and solid surface, and the countertop fabricator handles the cutout and faucet drillings. Designers working on mid-to-upper kitchens get a neutral gray that holds across a wide finish palette. Homeowners doing a targeted countertop-and-sink refresh get a clean undermount profile without the complications of a laminate-specific installation. This is an indoor kitchen installation; it is not rated for outdoor kitchens.
Frequently Asked Questions
Does this sink work with laminate countertops?
No. The QU-811-GR is designed for undermounting into quartz, granite, and solid surface countertops. For laminate installations, Karran's Q Series uses a documented seamless method specific to that countertop material.
Which bowl is larger — left or right?
Per the SAP description, the larger bowl is on the left and the smaller bowl is on the right as installed. Confirm orientation from the spec sheet or model documentation before finalizing your cabinet layout.
Is a drain, grid, or template included?
This SKU is a bare sink. Drains, bottom grids, and cutout templates are sold separately. If you need a bundled package with strainers and a grid, look for the -PK1 pack version of this model.
Where does the faucet mount?
The QU-811-GR has no faucet deck, so the faucet mounts through the countertop behind the sink. Work with your countertop fabricator to specify hole count and placement before the stone is cut.
How do I care for a quartz composite sink?
Rinse after use and clean with a non-abrasive cleaner. The quartz composite surface is resistant to most household stains, but avoid prolonged contact with strong chemical drain cleaners, which can affect the resin binder over time.
A Kitchen Sink Built to Handle Two Jobs at Once
The QU-811-GR brings a durable quartz composite bowl, a practical split-basin layout, and a clean undermount profile together in a finish that works across kitchen styles — so the counter stays organized and the sink stays out of the way.
