A Compact Drop-In Single Bowl Built for Everyday Work in Concrete
The Karran QT-820 is a quartz composite top mount kitchen sink in a 25 by 22 by 9 inch footprint, finished in Concrete. Designed as a drop-in for above-counter installation, it ships as a kit that includes everything needed to complete the bowl setup — ready for the countertop cutout without a trip back to the supply house.
Key Features
• Quartz composite construction blends 80% natural quartz crystals with 20% acrylic resin for a highly scratch, stain, chip, and heat resistant bowl surface.
• Concrete color finish delivers a muted, industrial-leaning tone that coordinates naturally with grey, white, and warm-wood cabinet palettes.
• Top mount / drop-in installation seats into any countertop cutout from above, making it compatible with laminate, solid surface, stone, and quartz decks without special tooling.
• Single bowl configuration offers an uninterrupted 25 by 22 inch interior for washing large cookware, sheet pans, and deep pots.
• Kit includes basket strainer, bottom grid, and Luster Pro oil so the sink arrives with its immediate support accessories already in the box.
• 9 inch bowl depth gives full submersion clearance for tall stockpots and keeps splashing contained.
Where the QT-820 Fits the Job
The top mount format is the practical choice any time the install needs to move quickly or the countertop material makes undercutting impractical. Because the perimeter rim rests on the deck surface and the sink clips from below, the QT-820 drops into an existing cutout in laminate just as readily as it installs in a freshly cut stone or quartz top. Cabinet shops building kitchens with prefabricated laminate tops, contractors retrofitting an existing counter, and homeowners updating a dated sink without replacing the surrounding surface all land on the same answer: a top mount that fits the cutout and clamps tight.
At 25 inches wide, this sink fits a standard 27 inch or larger sink base cabinet, keeping it accessible for smaller kitchen footprints and secondary kitchen stations like a butler's pantry or a compact prep area. The single bowl layout is the right call when washing oversized items is the priority — no divider means a half-sheet pan or a roasting pan goes in flat.
Concrete Quartz: Material and Finish
Karran's quartz composite is an engineered material, not a natural stone, but it holds up to the same demands. The 80% quartz content accounts for the surface's resistance to scratching and chipping under daily kitchen use; the acrylic resin binder keeps the bowl non-porous and resistant to the staining that affects more porous materials. Heat resistance lets the bowl handle normal kitchen conditions — rinsing hot pans and draining boiling water — without damage under typical use.
Concrete is a mid-tone grey with warm undertones that reads neutral across a wide range of cabinet and countertop combinations. It works alongside White oak and maple cabinetry where a grey pulls the palette together, and it holds its own under darker shaker-style doors where a stark white bowl would feel disconnected. The finish is integrated through the composite, not a surface coating, so chips and scratches that do occur do not expose a contrasting base.
The Right Buyer for This Sink
Cabinet shops and contractors who frequently specify quartz composite sinks will recognize the QT-820 as the smaller single-bowl option in the Karran top mount line — useful when the project calls for a compact station that still delivers the material quality and bowl depth of the larger models. Homeowners working within a tighter kitchen footprint, or anyone updating a sink without retooling the countertop, will find the drop-in format keeps the project scope manageable. The Concrete colorway is a deliberate specification choice for designers and homeowners who want a sink that anchors rather than disappears.
Will this sink fit my existing countertop cutout?
The QT-820 is a top mount sink, so it rests on the countertop surface and clips from below. If your existing cutout is close to the sink's outer dimensions, compare the cutout size against the sink's rim footprint before ordering — the rim needs a solid landing all the way around. For a new installation, trace the sink rim, mark your cut line, and complete the cutout before setting the sink.
What does the kit include?
The -PK1 kit ships with a stainless steel basket strainer, a bottom grid sized for this bowl, and a bottle of Luster Pro sink oil. A drain assembly is not included and should be ordered separately.
Is the Concrete finish consistent through the material?
Yes. Quartz composite color is integrated into the material rather than applied as a surface coating, so the Concrete tone carries through the bowl wall. Minor surface wear does not expose a differently colored base layer.
How should I care for a quartz composite bowl?
Rinse the bowl after use, wipe it down with a mild non-abrasive cleaner, and apply the included Luster Pro oil periodically to maintain the finish. Avoid harsh abrasive pads and strong chemical cleaners, which can dull the surface over time.
Does this sink need special faucet drilling?
The QT-820 has a faucet deck behind the bowl, so the faucet mounts through the sink deck rather than through the countertop. Confirm the number of holes and their spacing against your faucet's mounting requirements before ordering.
One Compact Bowl, Ready to Work
The QT-820 in Concrete brings quartz composite durability into a 25 inch top mount footprint that fits where larger sinks cannot, installs without specialty tooling, and arrives with its basket strainer, grid, and care oil already in the box.
