A Top Mount Sink Built Around Uninterrupted Basin Space
The Karran QT-670 is an extra-large single-bowl quartz composite kitchen sink designed for top mount installation in new builds and existing countertop cutouts. Its uninterrupted 33 by 22 inch footprint gives every inch of interior space to one basin, making it a natural fit for kitchens that handle large cookware, sheet pans, or heavy prep volume.
Key Features
• Top mount installation drops into any countertop material — laminate, stone, solid surface, or tile — and secures with clips from below.
• Extra-large single bowl at 33 by 22 by 9 inches delivers an uninterrupted basin with no divider to work around.
• Quartz composite construction (80% quartz, 20% acrylic resin) is highly scratch, stain, chip, and heat resistant for daily kitchen use.
• White finish pairs cleanly with white, light-toned, and two-tone cabinetry and countertop combinations.
• 9-inch bowl depth contains water and splash while accommodating tall stock pots and deep roasting pans.
Where the Single Bowl Makes the Difference
A divided basin forces a choice at every wash: which side gets the big pot, and which side stays clear for rinsing? The QT-670 removes that constraint entirely. Full-size baking sheets lie flat on the basin floor, stock pots sit upright without tilting against a divider, and a large cutting board can rest over the bowl as a temporary prep surface. For households or small prep kitchens that move through a lot of cookware in a single session, that unbroken workspace is the practical advantage that keeps work moving.
Quartz Composite Built for the Kitchen Environment
The bowl is formed from 80% natural quartz crystals bound in 20% acrylic resin — a combination the manufacturer describes as highly resistant to scratches, stains, chips, and heat. The White finish runs through the material rather than sitting as a surface coat, so the color holds up through everyday contact and cleaning. The quartz composite surface handles the range of typical kitchen chemicals and cleaning agents without degrading. Care is straightforward: routine cleaning with non-abrasive cleaners keeps the surface in condition.
The Right Sink for This Install Situation
The top mount format is the most straightforward path for a sink replacement or a new countertop installation where the countertop material is already in place. Because the rim rests on the counter surface, it covers the cut edge regardless of material — laminate, tile, quartz, granite, or solid surface. A cabinet shop or installer working on a standard 33 inch sink base will find the QT-670 sized to fit without cabinet modifications. It is equally at home in a kitchen renovation with a homeowner doing finish work and in a production shop building base cabinetry for a spec project.
Frequently Asked Questions
Does the QT-670 work with laminate countertops?
Yes. Top mount installation suits laminate countertops well because the rim sits over the cut edge, covering it completely. No edge banding or special treatment of the cutout is required.
Are mounting clips and a drain included?
Confirm the included components against the packing list for this SKU. Drains and strainers are commonly sold separately for QT-series sinks and should be ordered alongside the sink if not confirmed as included.
What is the minimum cabinet size for this sink?
The sink's 33 inch overall width is designed for a standard 33 inch sink base cabinet. Verify the cutout dimensions against the manufacturer's template or spec sheet before cutting.
Can I mount a faucet directly on the sink?
QT-series top mount sinks include a faucet deck. Check the spec sheet for the number and placement of pre-drilled or knock-out faucet holes on this model before purchasing a faucet.
Is white quartz composite difficult to keep clean?
Quartz composite cleans up with standard non-abrasive kitchen cleaners. The material is stain resistant, so routine wiping after use keeps the White finish looking fresh without special maintenance.
One Basin, Ready for the Full Load
The QT-670 puts the full 33-by-22-by-9 basin to work for a single task at a time — no divider, no compromise, and a top mount format that fits into an existing countertop without a countertop change-out.
