A Drop-In Quartz Sink Built for the Everyday Demands of a Working Kitchen
The Karran QT-812 is a large single bowl top mount kitchen sink in quartz composite, sized at 33 by 22 by 9 inches and finished in White. It drops into the countertop cutout from above and secures with clips beneath, making it compatible with virtually any countertop material and straightforward to fit into a new build or a countertop replacement.
Key Features
• Quartz composite construction bonds 80% natural quartz crystals with 20% high-performance acrylic resin for a highly scratch, stain, chip, and heat resistant surface.
• Top mount installation seats the sink from above on its perimeter rim, covering the cutout edge and working with laminate, stone, solid surface, and other countertop materials.
• Large single bowl delivers an uninterrupted 33-inch interior for washing oversized cookware, sheet pans, and large prep batches without a divider in the way.
• White finish coordinates with white and light cabinetry, countertops, and appliances across a range of kitchen aesthetics.
• Kit includes basket strainers, bottom grid, and Luster Pro oil so the sink arrives ready to install without a separate accessory order.
Where This Sink Fits the Job
A 33-inch single bowl top mount sink occupies the same cabinet footprint as a standard double bowl but trades the center divider for a single uninterrupted basin. That trade pays off whenever large items need to lay flat: sheet pans that would bridge a divider, stock pots too wide to tilt in a divided bowl, or cutting boards that benefit from rinsing in place. The drop-in mount also makes this sink a practical fit for kitchen remodels where the countertop stays in place. Rather than cutting from beneath or modifying countertop edges, the installer traces the template, makes a straight jigsaw or router cut, and drops the sink in. The rim covers the cut line regardless of material, so the finish work is minimal.
Quartz Composite: What It Means at the Bowl
Quartz composite behaves differently from stainless at the surface level. It resists scratching from daily utensil contact, does not show water spots or fingerprints the way polished metal does, and handles heat from pots set directly in the bowl without discoloring. The White finish holds its appearance without the patina or micro-marring that shows on lighter stainless over time. The material is non-porous, so stains from coffee, wine, and food dyes stay on the surface rather than soaking in, and wiping down with a damp cloth handles most cleanup. The included Luster Pro oil is Karran's recommended maintenance product for quartz and is in the box to get the first treatment done before the sink goes into service.
Who Orders This Sink and Why
Homeowners renovating a kitchen who want to keep or replace the existing countertop find the top mount method the lower-friction path: no edge finishing, no specialty adhesive, and no reveal negotiation with a fabricator. Cabinet shops specifying sinks for a client who cooks heavily and wants a single open basin rather than a divided bowl reach for the QT-812 when White is the finish call. Designers working on kitchens with laminate counters appreciate that the quartz bowl delivers a premium material story without requiring a seamless fabrication process. The kit format means all the first-use accessories ship with the sink, so the install checklist stays short.
Frequently Asked Questions
Does the faucet mount through the sink or through the countertop?
The QT-812 has no faucet deck, so the faucet mounts through the countertop behind the sink. Plan your countertop drilling before the sink goes in.
What countertop materials work with this sink?
Top mount installation works with laminate, stone, solid surface, quartz, and tile countertops. The rim rests on and covers the cut edge, so no edge finishing is required regardless of material.
Is a template included for cutting the countertop opening?
Check the spec sheet and packaging for template inclusion specific to this SKU. As a general practice, have the actual sink on hand before making the cutout so you can verify the opening against the sink itself.
What does the kit include beyond the sink?
The -PK1 kit includes stainless steel basket strainers, a bottom grid sized for the bowl, and Luster Pro oil for the initial surface treatment. A drain assembly and faucet are not included and are sold separately.
Can the surface be repaired if it chips?
Karran describes the quartz composite material as highly chip resistant. Because the color runs through the material rather than sitting as a surface coat, minor damage is less visually prominent than it would be on a coated or enameled sink.
A Sink That Earns Its Place Every Day
The QT-812 brings quartz composite durability and a full single-bowl interior to a drop-in format that fits any countertop and any installer's workflow, with the first-use accessories already in the box.
