A 33-Inch Top Mount Sink for Kitchens That Demand Full-Capacity Workspace
The Karran QT-670 is a quartz composite top mount kitchen sink with an extra-large single bowl, sized at 33 by 22 by 9 inches and offered here in Black. It drops into a standard countertop cutout from above, making it a practical upgrade for both new builds and existing kitchens across laminate, stone, solid surface, and tile.
Key Features
• Extra-large single bowl provides an uninterrupted interior for washing full sheet pans, stockpots, and oversized cookware without a divider in the way.
• Top mount installation seats the sink from above, covering the cut edge with the perimeter rim and suiting all countertop materials.
• Quartz composite construction combines 80% natural quartz crystals with 20% acrylic resin for a dense, highly scratch-, stain-, chip-, and heat-resistant bowl surface.
• Black finish provides a matte, bold aesthetic that anchors dark or two-tone kitchen palettes and holds up to heavy daily use.
• 9-inch bowl depth gives ample clearance for large pots and colanders while keeping the drain comfortably within reach.
Where the QT-670 Earns Its Place
A single bowl this size eliminates the most common friction point in a busy kitchen: the divider that stops a roasting pan mid-rinse. Cooks who regularly work with full sheet trays, large stock pots, or oversized cutting boards can lay them flat and have room to maneuver. The 9-inch depth adds clearance for tall items like blenders and deep baking dishes without requiring a reach-down that strains the back. For kitchens where one primary cook handles most of the washing load, that uninterrupted space is genuinely useful, not just aesthetic.
The top mount format keeps installation accessible. Because the rim sits on the counter surface, the cutout edge does not need to be precision-finished, and the sink can be retrofitted into an existing countertop without extensive prep. Cabinet and countertop shops that are upgrading a customer's kitchen as part of a larger project, as well as contractors finishing spec homes, will find the drop-in path straightforward.
Quartz Composite in Black: What It Means in Practice
Karran's quartz composite is 80% natural quartz and 20% acrylic resin, a ratio that produces a bowl denser and harder than most acrylic sinks, with significantly better resistance to the daily hazards of kitchen use. The material is highly resistant to scratches, stains, chips, and heat, and the Black color runs through the material rather than sitting only on the surface, so minor abrasion from cookware does not expose a lighter substrate underneath. The matte black surface is a practical choice too: it masks water spots and everyday residue better than a glossy finish does, which reduces the frequency of visible smudging between cleanings.
Right for Renovation Clients, Countertop Shops, and Design-Build Teams
Homeowners undertaking a full kitchen renovation who want a focal-point sink without a farmhouse cabinet modification will find the QT-670's drop-in path far simpler. Designers specifying sinks for clients who cook frequently and want continuity between a dark cabinet palette and the sink will appreciate the Black color option alongside a shape that holds its own at scale. Cabinet shops and countertop fabricators working on laminate or solid surface tops benefit from the top mount format, which requires no seamless bevel-bit process and no countertop-edge finishing beyond the cut. At 33 by 22 inches, it fills a standard 33-inch or larger sink base without crowding.
Frequently Asked Questions
Can this sink be installed in a laminate countertop?
Yes. The top mount rim covers the cutout edge, so laminate and post-form countertops work well. Trace the sink, mark the cut line inset from the perimeter, drill a starter hole inside the line, and complete the cutout with a jigsaw before dropping the sink in and securing it with the supplied clips.
Is a template or drain included with the sink?
The drain assembly is sold separately. Confirm what ships with your specific SKU at checkout, and order a compatible basket strainer before installation day so the plumbing connection is ready when the sink goes in.
How does the Black quartz composite hold up over time compared to a painted or coated finish?
Quartz composite color is integral to the material, not a surface coating. The black pigment is distributed throughout the bowl, so normal cookware contact and cleaning do not expose a lighter layer underneath. The surface remains highly scratch and stain resistant with standard care.
What faucet hole configuration does this sink use?
The QT-670 is a top mount sink without a faucet deck in the bowl field; faucet drillings go through the countertop behind the sink or through any pre-drilled locations in the rim. Verify faucet hole count and position with your countertop plan before cutting.
Is this sink appropriate for outdoor kitchens or covered patios?
The QT-670 is designed for indoor kitchen use. For covered outdoor applications, confirm environmental conditions and drainage requirements with a plumbing professional before specifying.
Built for Kitchens That Work Hard
The QT-670 in Black brings together a large, uncompromised workspace, durable quartz composite construction, and a top mount format that fits the widest range of countertops and install timelines, making it a solid anchor for any kitchen where capacity and a clean, modern aesthetic both matter.
