Karran Quartz Undermount Sink For High-Volume Kitchen Work
The Karran QU812BL-PK1 is a large single bowl undermount kitchen sink in Black quartz composite, packaged as a kit with the accessories you need to finish the installation. Its uninterrupted 32-1/4 by 19-1/4 inch footprint and 9-inch depth give a single wash station serious capacity, making it a natural fit for busy kitchens where sheet pans, large stockpots, and heavy prep loads are the norm.
Key Features
• 80% quartz / 20% acrylic resin construction delivers a bowl that is highly resistant to scratches, stains, chips, and heat in daily kitchen use.
• Large single bowl configuration provides an uninterrupted basin for washing oversized cookware without a divider in the way.
• Undermount installation positions the sink below the countertop edge for a clean, wipe-down surface that suits quartz, granite, and solid surface countertops.
• Black finish brings a bold, consistent color throughout the bowl — not a surface coating — so the color holds up through years of use.
• Kit includes basket strainers, bottom grid, and Luster Pro oil, so the essentials arrive with the sink rather than requiring separate orders.
• No faucet deck keeps the profile clean; the faucet mounts through the countertop behind the sink.
Built for Kitchens That Work Hard
An uninterrupted single basin this size handles the tasks that split-bowl sinks struggle with: submerging a full-size roasting pan, filling a 12-quart stockpot, or rinsing a large cutting board flat. The 9-inch bowl depth keeps splashing in check even at high fill levels, and the wide open interior makes cleanup faster than navigating around a center divider. For a kitchen renovation anchored around function, this sink earns its footprint.
Material That Matches Its Look
Quartz composite sinks carry their color through the full thickness of the material, so the Black finish on this bowl is not a painted or coated surface that can chip away to reveal something lighter underneath. The 80% quartz content accounts for the resistance to heat, scratches, and stains that makes this material a practical choice over a purely decorative one. Because the faucet mounts through the countertop rather than a sink deck, the countertop material and faucet configuration stay flexible — one, two, or three holes work depending on the layout planned above.
The Right Sink for Renovation and New Construction Alike
Cabinet shops and contractors specifying a kitchen package find a 32-1/4 inch single bowl fits the standard 36-inch sink base with room for the plumbing rough-in. Homeowners completing a kitchen remodel in quartz or granite get a sink that integrates cleanly with stone countertop edges rather than sitting on top of them. Designers specifying hardware and fixtures for a bold, dark-toned kitchen will find the Black quartz composite carries the look through without requiring ongoing maintenance to keep it consistent. The included kit components — basket strainers, bottom grid, and Luster Pro care oil — mean the project does not stall waiting on accessories.
Does this sink require a special cutout for undermount installation?
Yes. The countertop fabricator cuts an opening sized to the sink's specifications, and the sink attaches with clips and adhesive appropriate to the countertop material — quartz, granite, or solid surface. The actual sink should be on-site before the cutout is made. A paper template or DXF file can support the layout, but neither is included in the kit; confirm with your fabricator.
Can the faucet mount directly to the sink?
No. This QU Series sink has no faucet deck, so the faucet, soap dispenser, and any other accessories mount through holes drilled in the countertop. Plan faucet hole locations with your fabricator before the countertop is cut.
What is included in the PK1 kit?
The -PK1 pack includes the sink, stainless steel basket strainers, a bottom grid, and Luster Pro oil. The drain assembly is not included and is sold separately — order it before installation day.
Is this a seamless installation sink?
No. The QU Series is a conventional undermount line — the sink attaches beneath the finished countertop edge with clips and sealant. Karran's seamless integration method applies to the Q Series in laminate and solid surface countertops, not to QU undermount models.
Will the Black finish show water spots or scratches over time?
Quartz composite is rated as highly scratch and stain resistant, and the Black color runs through the full material depth rather than sitting as a surface layer. For best results, follow Karran's care guidance and use the included Luster Pro oil periodically to maintain the finish.
One Basin, Fully Equipped
The QU812BL-PK1 delivers a serious, single-purpose wash station in a finish that holds its look — and arrives with the strainers, grid, and care product already in the box so the installation moves forward without a parts chase.
