

Hero image 0 of Kraus 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with Waste Guard Continuous Feed Garbage Disposal, 0 of 12
Kraus 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with Waste Guard Continuous Feed Garbage Disposal
Key item features
- Sink Dimensions: The sink measures 30 1/2 L x 17 W x 9 1/4 D, requiring a minimum 33-inch cabinet, and features an extra-deep basin with rounded corners.
- Durable Construction: Crafted from 80% natural quartz and high-performance acrylic resin, this granite composite offers exceptional durability with a stone-like appearance.
- Included Components: The kit provides a kitchen sink, basket strainer drain assembly, Kraus kitchen towel, and a 3/4 HP garbage disposal with connectors and power cord.
- Powerful Disposal: The KRAUS WasteGuard garbage disposal boasts a 3800 RPM MagnaGrind motor for fast, reliable grinding of tough food scraps.
- Easy Installation: The EZLock 2-step mounting assembly simplifies installation, locking into place easily without the need for plumber's putty for most sinks.
- Continuous Feed: This continuous-feed disposal efficiently shreds large quantities of food waste, activated via a wall or air switch (sold separately).
- Safety Features: A motor-saving shut-off system prevents damage from blockages, with a reset button for quick power restoration after debris removal.
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Specs
- Dimensions30.50 x 17.00 x 9.25 in
- Sink typeUndermount Sink
- Mount typeDrop-in
- MaterialGranite
- ColorBlack Onyx
- FeaturesEasy Installation
Reviews summary
Pros
- : Has a contemporary style that adds elegance to the kitchen.
- : Simple installation process with clear instructions.
- : Offers unique features for kitchen use.
- : Has a non-reflective surface.
- : Made from durable metal material with a sleek design.
- : Offers high-end quality at a lower cost.
Generated by AI
Price when purchased online
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About this item
Product details
Kraus undermount granite sinks create an instant style upgrade for the kitchen. This single bowl sink provides a lifetime of functionality with refined style. For added convenience, a basket strainer drain assembly and complimentary towel are included free with purchase. This kit also includes the KRAUS® WasteGuard™ Continuous Feed Garbage Disposal for Kitchen Sinks. Featuring a MagnaGrind™ 3800 RPM 3/4 Horsepower permanent-magnet motor, this premium disposal provides instant power, ensuring faster operation than traditional induction motors for reliable grinding of the toughest food scraps. The continuous-feed garbage disposal can shred large quantities of food scraps, eliminating the need to grind in batches. An included stopper allows you to fill up the sink bowl for soaking dishes, with an extended tailpiece that doubles as a plunger to safely push stubborn food scraps into the disposal. Comes with a complete garbage disposal install kit, including power cord and flange.
- OUTER SINK DIMENSIONS: 30 1/2” L x 17” W x 9 1/4” D Minimum Cabinet Size 33”, Garbage Disposal Dimensions: 7 1/2“ W x 15 1/4”H. Minimum Installation Clearance: 10 1/4” 40.6 oz. grinding chamber. UNIVERSAL DESIGN: Compatible with kitchen sinks with standard round 3 1/2” drain opening and 1 1/2” standard kitchen plumbing connections
- KIT INCLUDES: Kitchen sink, basket strainer drain assembly, Kraus kitchen towel, 3/4 HP garbage disposal, drain and dishwasher connectors, power cord, sink drain stopper/plunger, mounting flange with stainless steel rim
- EXTRA-DEEP Basin Design with gently rounded corners for easy maintenance and standard 3.5" drain opening
- HIGH-QUALITY Granite Composite made from 80% natural quartz and high-performance acrylic resin for exceptional durability with the look and feel of real stone
- NATURALLY Sound-Absorbing Non-Porous Surface is Easy to Clean & Heat-Resistant
- POWERFUL PERFORMANCE: KRAUS® WasteGuard™ Garbage Disposal offers fast and reliable grinding of the toughest food scraps Superior 3800 RPM TO 3/4 Horsepower ratio eliminates waste in seconds
- EASY-INSTALL: EZLock™ 2-step mounting assembly locks into place with ease Mounting flange drops into drain opening with no need for plumber’s putty for most sinks
- CONTINUOUS FEED DISPOSAL: Activated via wall switch or air switch (sold separately)
- HEAVY-DUTY MagnaGrind™ MOTOR: Permanent-magnet motor provides instant power to the grinder Faster Operation than induction motors, which take time to reach optimal speed
- MOTOR-SAVING SHUT-OFF system stops power in the event of a blockage to help prevent damage Reset button allows you to quickly restore power after debris is removed
- LIMITED LIFETIME WARRANTY and top-rated customer service available to support your needs
info:
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Specifications
Dimensions
30.50 x 17.00 x 9.25 in
Sink type
Undermount Sink
Mount type
Drop-in
Material
Granite
Warranty
Warranty information
We are happy to accept returns of unused or defective items for a refund within 30 days from the date of delivery. For returns outside 30 days, please use the 'Contact seller' feature on our Marketplace seller's information page our Customer Service team to go over our options. For full details, please view the Shipping and Payments tab above.
To initiate a return simply go to the Walmart Orders Portal and submit a return request. We ask that all items be returned with all original components via a traceable method. Once your return is received and processed, we will quickly get your refund or replacement issued.
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Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Has a contemporary style that adds elegance to the kitchen.
- : Simple installation process with clear instructions.
- : Offers unique features for kitchen use.
- : Has a non-reflective surface.
- : Made from durable metal material with a sleek design.
- : Offers high-end quality at a lower cost.
Generated by AI
Customer photos






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Showing 1-3 of 304 reviews
Apr 11, 2026
Shell22
5 out of 5 stars review
Seller Verified Purchase
Sturdy, solid, very attractive
This faucet is amazing. It looks great, feels solid and works great. The feature that allows tap in the osmosis water through the extra spout works really well. I have it installed on my island and the size and design of this faucet the “pop” that my kitchen needs. The shipping was excellent and overall I'm very happy with my purchase.
Review from kraususa.com
Helpful?7DGD4SIAS2BS614189775
Apr 13, 2026
Michael
5 out of 5 stars review
Seller Verified Purchase
This is my second Kraus sink. Good quality and fits perfectly in our corner cabinet sink base
Review from kraususa.com
Helpful?7DGD4SIAS2BS614189775
Mar 1, 2026
MailRobbie
5 out of 5 stars review
Seller Verified Purchase
Drinking water faucet
Great product.....
Review from kraususa.com
Helpful?7DGD4SIAS2BS614189775


