For over 45 years, Würth Louis and Company has elevated the woodworking industry through exceptional service, quality, and convenience to ensure a seamless experience every time. With flexible ordering options, a comprehensive selection of products, and next-day delivery, we cater to all your woodworking and shop supply needs.
We appreciate your trust in our expertise and dedication to providing you with the best tools and materials, helping you achieve outstanding results in your projects.
We are committed to offering:
Flexible Ordering Options: Order online 24/7 or speak with our sales team

Order by 24/7 by web, contact our sales reps or call by phone.

What you need, when you need it, all in one place.

Orders are shipped next day.

Advice and support from knowledgeable professionals.
| Box Quantity | 1 |
| Color/Finish | Gray |
| Product Type | Top Mount Sink |
| Overall Sink Length (Side to Side) | 33 in |
| Overall Sink Width (Front to Back) | 22 in |
| Minimum Cabinet Width Required | 33 in |
| Inside Bowl Depth | 9 in |
| Inside Bowl Length | 30 in |
| Inside Bowl Width | 16-3/4 in |
| Installation Method | Top mount |
| Designed for Installation Into | All countertop materials |
| Drain Opening Diameter | 3-1/2 in |
| Bowl Configuration | Single |
| ADA Compliant | No |
| Certifications | cUPC certified, IAPMO certified |
| Material Type | Quartz |

| Box Quantity | 1 |
| Color/Finish | Gray |
| Product Type | Top Mount Sink |
| Overall Sink Length (Side to Side) | 33 in |
| Overall Sink Width (Front to Back) | 22 in |
| Minimum Cabinet Width Required | 33 in |
| Inside Bowl Depth | 9 in |
| Inside Bowl Length | 30 in |
| Inside Bowl Width | 16-3/4 in |
| Installation Method | Top mount |
| Designed for Installation Into | All countertop materials |
| Drain Opening Diameter | 3-1/2 in |
| Bowl Configuration | Single |
| ADA Compliant | No |
| Certifications | cUPC certified, IAPMO certified |
| Material Type | Quartz |
The Karran QT812 is a large single bowl quartz composite kitchen sink in Gray, designed for drop-in installation in virtually any countertop material. This kit includes the basket strainer, bottom grid, and Luster Pro care oil so the sink is ready for use from the moment it drops into the cutout.
• Quartz composite construction made from 80% natural quartz crystals and 20% acrylic resin, offering high resistance to scratches, stains, chips, and heat.
• Top mount installation drops into an existing countertop cutout and works across laminate, stone, quartz, and solid surface countertops.
• Large single bowl at 33 x 22 x 9 inches provides an uninterrupted basin suited to large pots, sheet pans, and bulky cookware.
• Gray finish reads neutral against both warm and cool cabinetry, coordinating with a wide range of countertop and hardware choices.
• Kit includes a stainless steel basket strainer, a bottom grid sized for this bowl, and Luster Pro oil.
The top mount format is the straightforward path for retrofit situations — the sink drops into the cutout from above, its rim covers the cut edge, and the supplied clips draw it tight from underneath. There is no need for a countertop finish detail at the exposed edge, which makes this configuration well suited to laminate and tile countertops in addition to stone and solid surface. For a cabinet shop completing a kitchen or a contractor replacing an existing drop-in sink, the QT812 goes in without routing the underside of the deck or coordinating a seamless seam. The minimum cabinet size requirement and the cutout dimensions should be verified against the manufacturer's spec sheet before cutting, since the sink should be present before any cuts are made.
The single bowl layout gives up the wash-and-rinse separation of a divided sink in exchange for continuous workspace — the full length and depth of the bowl are available for oversized stock pots, half-sheet pans laid flat, or a full dish load without a divider breaking the flow. It is also a practical choice for small households that do not need dedicated bowl stations.
Gray is one of the more versatile colors in the quartz composite palette. It anchors a white or light countertop with visible contrast, and it blends cleanly into greige and dark stone surfaces without competing. Unlike a stainless sink, the Gray quartz composite bowl will not show water spots, fingerprints, or surface reflections from overhead lighting. The nonporous quartz surface does not support staining the way a porous material might — everyday spills, oils, and food acids clean up with warm water and mild soap. The 9 inch bowl depth adds to the sense of a working, high-capacity sink.
Because the color runs through the material rather than sitting in a surface coating, minor abrasions do not reveal a different-colored substrate. That said, the manufacturer describes this material as highly scratch resistant, stain resistant, chip resistant, and heat resistant — not scratch-proof or indestructible — and the care instructions that come with the sink should be followed for long-term appearance.
Cabinet shops installing complete kitchen packages often spec a quartz composite top mount because the install tolerance is more forgiving than an undermount and the visual result is clean and finished. Contractors replacing aging drop-in sinks find the top mount format compatible with existing cutouts in many cases, reducing countertop work on a remodel. Homeowners redesigning a kitchen with a laminate countertop get a high-performing quartz bowl that installs without specialized countertop fabrication. The Gray color choice tends to come from buyers working with greige, concrete-look, or white-and-gray interiors where a neutral sink tone is the goal.
Yes. The rim sits on top of the counter and covers the cut edge, so the countertop material does not need a finished edge detail underneath. This makes top mount installation well suited to laminate, tile, stone, and solid surface countertops.
The QT812GR-PK1 ships with a stainless steel basket strainer, a bottom grid sized for the bowl, and Luster Pro care oil. A drain assembly and faucet are not included.
The QT812 is a single bowl sink without a handed configuration. The drain location should be confirmed against the spec sheet to ensure it aligns with the planned plumbing rough-in.
Quartz composite is not a refinishable material the way solid surface is. The manufacturer describes it as highly chip resistant, and the through-color construction means minor surface wear is less visible than on a coated product, but chips that go through the material cannot be sanded out.
Top mount installation uses the supplied sink clips and a bead of silicone sealant around the rim perimeter — no specialty adhesive is required. Follow the manufacturer's installation guide for the specific sealant type and clip torque.
The QT812 in Gray delivers a large, hardworking quartz bowl in one of the most installation-friendly formats available. Whether it is going into a new cabinet package or replacing an older drop-in, the kit gives installers what they need to put the sink in service and move on.
The Karran QT812 is a large single bowl quartz composite kitchen sink in Gray, designed for drop-in installation in virtually any countertop material. This kit includes the basket strainer, bottom grid, and Luster Pro care oil so the sink is ready for use from the moment it drops into the cutout.
• Quartz composite construction made from 80% natural quartz crystals and 20% acrylic resin, offering high resistance to scratches, stains, chips, and heat.
• Top mount installation drops into an existing countertop cutout and works across laminate, stone, quartz, and solid surface countertops.
• Large single bowl at 33 x 22 x 9 inches provides an uninterrupted basin suited to large pots, sheet pans, and bulky cookware.
• Gray finish reads neutral against both warm and cool cabinetry, coordinating with a wide range of countertop and hardware choices.
• Kit includes a stainless steel basket strainer, a bottom grid sized for this bowl, and Luster Pro oil.
The top mount format is the straightforward path for retrofit situations — the sink drops into the cutout from above, its rim covers the cut edge, and the supplied clips draw it tight from underneath. There is no need for a countertop finish detail at the exposed edge, which makes this configuration well suited to laminate and tile countertops in addition to stone and solid surface. For a cabinet shop completing a kitchen or a contractor replacing an existing drop-in sink, the QT812 goes in without routing the underside of the deck or coordinating a seamless seam. The minimum cabinet size requirement and the cutout dimensions should be verified against the manufacturer's spec sheet before cutting, since the sink should be present before any cuts are made.
The single bowl layout gives up the wash-and-rinse separation of a divided sink in exchange for continuous workspace — the full length and depth of the bowl are available for oversized stock pots, half-sheet pans laid flat, or a full dish load without a divider breaking the flow. It is also a practical choice for small households that do not need dedicated bowl stations.
Gray is one of the more versatile colors in the quartz composite palette. It anchors a white or light countertop with visible contrast, and it blends cleanly into greige and dark stone surfaces without competing. Unlike a stainless sink, the Gray quartz composite bowl will not show water spots, fingerprints, or surface reflections from overhead lighting. The nonporous quartz surface does not support staining the way a porous material might — everyday spills, oils, and food acids clean up with warm water and mild soap. The 9 inch bowl depth adds to the sense of a working, high-capacity sink.
Because the color runs through the material rather than sitting in a surface coating, minor abrasions do not reveal a different-colored substrate. That said, the manufacturer describes this material as highly scratch resistant, stain resistant, chip resistant, and heat resistant — not scratch-proof or indestructible — and the care instructions that come with the sink should be followed for long-term appearance.
Cabinet shops installing complete kitchen packages often spec a quartz composite top mount because the install tolerance is more forgiving than an undermount and the visual result is clean and finished. Contractors replacing aging drop-in sinks find the top mount format compatible with existing cutouts in many cases, reducing countertop work on a remodel. Homeowners redesigning a kitchen with a laminate countertop get a high-performing quartz bowl that installs without specialized countertop fabrication. The Gray color choice tends to come from buyers working with greige, concrete-look, or white-and-gray interiors where a neutral sink tone is the goal.
Yes. The rim sits on top of the counter and covers the cut edge, so the countertop material does not need a finished edge detail underneath. This makes top mount installation well suited to laminate, tile, stone, and solid surface countertops.
The QT812GR-PK1 ships with a stainless steel basket strainer, a bottom grid sized for the bowl, and Luster Pro care oil. A drain assembly and faucet are not included.
The QT812 is a single bowl sink without a handed configuration. The drain location should be confirmed against the spec sheet to ensure it aligns with the planned plumbing rough-in.
Quartz composite is not a refinishable material the way solid surface is. The manufacturer describes it as highly chip resistant, and the through-color construction means minor surface wear is less visible than on a coated product, but chips that go through the material cannot be sanded out.
Top mount installation uses the supplied sink clips and a bead of silicone sealant around the rim perimeter — no specialty adhesive is required. Follow the manufacturer's installation guide for the specific sealant type and clip torque.
The QT812 in Gray delivers a large, hardworking quartz bowl in one of the most installation-friendly formats available. Whether it is going into a new cabinet package or replacing an older drop-in, the kit gives installers what they need to put the sink in service and move on.
Please be advised that product(s) you’re purchasing may have State of California Prop 65 warnings associated. For more information, go to www.P65Warnings.ca.gov
Please be advised that product(s) you’re purchasing may have State of California Prop 65 warnings associated. For more information, go to www.P65Warnings.ca.gov