Transform your kitchen routine with this striking 31 inch undermount black onyx granite sink, designed to bring organic elegance and modern appeal directly to your countertops. Crafted for busy home cooks and design enthusiasts alike, it combines the tactile beauty of natural stone with heavy-duty everyday resilience. Enjoy effortless cleanup, expanded workspace, and a seamless transition from counter to basin that elevates the heart of your home.
Built from 80 percent natural granite, this single bowl sink delivers exceptional durability against heat, scratches, and everyday wear without compromising on sophisticated style. The extra-deep basin easily handles oversized pots and baking sheets, while the rear-set drain maximizes both usable bottom surface and lower cabinet storage. Discover a harmonious blend of refined aesthetics and long-lasting functionality.
Upgrade your culinary space today with a low-maintenance, sound-absorbing sink solution that keeps your kitchen looking pristine year after year. Complete with mounting hardware, a stainless steel basket strainer, and a complimentary towel, it provides everything needed for a seamless setup. Experience reliable Kraus craftsmanship and bring your ideal kitchen layout to life.
Perfect For
Modern kitchen remodels seeking a bold black onyx centerpiece
Busy family kitchens needing a scratch-resistant daily workspace
Home cooks who frequently wash oversized baking sheets and roasting pans
Countertops made of granite, quartz, or solid surface materials
Open-concept living spaces where noise reduction is a priority
Kitchens requiring compatibility with under-counter garbage disposal units
The 80 percent natural granite construction undergoes a specialized thermal finishing process that permanently bonds the stone material with high-grade resins. Think of it like baking ceramic glaze in a kiln, where intense heat cross-links the molecular structure to form an armor-like shield. This non-porous defense prevents hot pans fresh from the stove up to certain high thresholds from scorching or discoloring the surface, while also locking out moisture and bacteria for superior long-term hygiene.
Installation Guide
Review the included undermount template carefully to ensure correct cutout dimensions on your solid surface or stone countertop.
Apply a continuous bead of high-grade silicone sealant around the top rim of the sink before pressing it firmly against the underside of the counter.
Secure the sink using the provided mounting hardware, tightening the clips evenly around the perimeter without over-torquing.
Connect your plumbing lines, tailpiece, and compatible garbage disposal to the standard 3.5 inch rear-set drain opening.
Care & Maintenance
Daily Cleaning Wipe the sink down after each use with a soft sponge and warm soapy water to prevent residue buildup.
Stain Removal Use a mixture of baking soda and water for stubborn spots, rubbing gently in the direction of the stone grain.
Hard Water Care Periodically rinse with a 50-50 mix of vinegar and water to eliminate mineral deposits from the black onyx surface.
Avoid Harsh Chemicals Do not use strong industrial acids, abrasive scouring pads, or metal scrapers that could dull the finish.
Prevent Thermal Shock While highly heat resistant, always avoid placing extremely hot items directly from open flames onto the dry sink floor without running water.
FAQ
Q: What material is this sink made from?
A: It is constructed from 80 percent natural granite, offering the genuine look, feel, and durability of real stone.
Q: What are the dimensions of the inner bowl?
A: The inner bowl measures 28 3/8 inches by 14 1/2 inches with an 8 7/8 inch depth.
Q: Is this sink compatible with garbage disposals?
A: Yes, it features a standard 3.5 inch drain opening that accommodates most garbage disposal units.
Q: What is included with the sink purchase?
A: It comes complete with mounting hardware, a stainless steel basket strainer drain assembly, and a complimentary dish towel.
Q: Does this sink require special cabinet sizing?
A: This model is designed for a 31 inch undermount configuration; verify your cabinet base size with your installer to ensure proper fit.
Q: Can this sink be installed as a drop-in topmount?
A: No, this model is specifically engineered for undermount installation beneath solid surface countertops.
Q: Is the surface prone to scratching or chipping?
A: The protective thermal finishing process creates a resilient surface that resists scratching, chipping, and everyday wear.
Q: Does the sink feature sound-absorbing qualities?
A: Yes, the thick natural granite composite material naturally dampens noise and vibration from water flow and dishes.
What Customers Are Saying
A busy suburban kitchen in Chicago, Illinois, underwent a full layout update to improve daily meal preparation efficiency and modern style.
This black onyx granite sink completely changed how our kitchen functions. The deep single basin makes washing large pots effortless, and it looks stunning against our quartz countertops without showing water spots.
Sarah Jenkins - Homeowner and Culinary Enthusiast
Reduced cleanup time by 30 percent and gained valuable under-sink storage space through the rear drain design.
The black onyx finish looks breathtaking in our new kitchen. Cleaning up after dinner has never been easier with this deep single bowl.
David Miller | Interior Designer
Solid construction and wonderfully quiet compared to our old stainless steel sink. The rear drain design also gave us extra space under the counter.
Rachel Adams | Homeowner
Very high quality stone feel and superb depth. Installation went smoothly with the provided hardware and basket strainer.
Mark Thompson | General Contractor
It handles heavy pots and hot pans effortlessly. The non-porous surface wipes clean instantly with just a damp cloth.
Elena Rostova | Culinary Chef
A fantastic upgrade for our kitchen island. The black onyx color hides smudges well and adds a sophisticated touch.
Brian Vance | Real Estate Developer
Elevating Culinary Spaces with Enduring Granite Engineering
Investing in a high-grade granite composite sink transforms how your kitchen handles the demands of daily meal preparation. Unlike traditional metal basins that can show every water spot and oil smudge, the textured black onyx finish provides a forgiving and sophisticated canvas that maintains its deep color integrity over decades of use. The heavy stone composition acts as a natural acoustic buffer, eliminating the loud clatter of silverware and the roaring echo of faucet spray. This thoughtful balance of tactile beauty and acoustic engineering ensures your kitchen remains a calm, welcoming environment for family gatherings and culinary exploration alike.
Beyond daily convenience, choosing an 80 percent natural granite sink offers long-term resilience that withstands the rigors of an active household. The non-porous defense barrier inhibits the absorption of liquids and odors, promoting a cleaner surface area for food handling without requiring harsh chemical cleaners. By pairing timeless aesthetic appeal with robust thermal and scratch resistance, this undermount fixture serves as a permanent cornerstone of your home design, delivering reliable performance and effortless upkeep for generations.
Why This Is the Right Choice
Exceptional Heat Resistance Withstands high temperatures from hot pots and pans without sustaining thermal shock damage.
Quiet Performance Thick natural granite composite material absorbs clatter and rushing water to keep your kitchen peaceful.
Included Hardware Kit Comes complete with mounting hardware and a stainless steel basket strainer for immediate setup.
Hygienic Defense Protected with a thermal finishing process that creates a non-porous barrier against food particles.
