--- product_id: 376352806 title: "KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB" brand: "kraus" price: "$1954.86" currency: USD in_stock: true url: https://www.desertcart.us/products/376352806-kraus-31-inch-undermount-single-bowl-black-onyx-granite-kitchen store_origin: US region: United States of America --- # Black Onyx granite composite Continuous-feed WasteGuard™ disposal 3/4 HP MagnaGrind™ motor KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB **Brand:** kraus **Price:** $1954.86 **Availability:** ✅ In Stock ## Summary > 🖤 Elevate your kitchen game with power, style, and zero hassle! ## Quick Answers - **What is this?** KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB by kraus - **How much does it cost?** $1954.86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/376352806-kraus-31-inch-undermount-single-bowl-black-onyx-granite-kitchen) ## Best For - kraus enthusiasts ## Why This Product - Trusted kraus brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerhouse Performance:** 3/4 HP motor spins at 3800 RPM for lightning-fast waste grinding. - • **Sleek & Durable Design:** 80% natural quartz granite composite with a stunning Black Onyx finish. - • **Effortless Installation:** EZLock 2-step mounting system locks in place—no plumber needed. - • **Continuous Feed Convenience:** Grind large food scraps nonstop via wall or air switch activation. - • **Quiet & Maintenance-Friendly:** Sound-absorbing, non-porous surface resists stains and heat for easy cleaning. ## Overview The KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink combines premium 80% natural quartz composite durability with a powerful 3/4 HP WasteGuard™ continuous-feed garbage disposal featuring a 3800 RPM MagnaGrind™ motor. Designed for easy installation and maintenance, this sleek black sink offers a deep basin, sound-absorbing surface, and a complete disposal kit, making it the ultimate upgrade for modern kitchens. ## Description 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. ## Features - 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), the garbage disposal can shred large quantities of food waste continuously, eliminating the need to grind waste in batches – Quicker and easier to operate than batch-feed disposals – 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 ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09J8BJ1P7 | | Best Sellers Rank | #63,289 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #68 in Single Bowl Kitchen Sinks | | Brand Name | Kraus | | Color | Black | | Customer Reviews | 5.0 5.0 out of 5 stars (4) 5.0 out of 5 stars | | Drain Type | Pop-Up | | Finish Types | Black Onyx | | Hole Count | 1 | | Included Components | 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 | | Installation Type | Undermount | | Item Dimensions D X W X H | 17"D x 30.5"W x 9.25"H | | Item Type Name | Kraus Quarza Standard Kitchen Sink | | Item Weight | 41.9 pounds | | Manufacturer | Kraus | | Manufacturer Part Number | KGU-413B-100-75MB | | Manufacturer Warranty Description | Limited Lifetime Warranty | | Material Type | Granite | | Model Number | KGU-413B-100-75MB | | Number Of Items | 1 | | Number Of Packs | 1 | | Product Care Instructions | Wipe with Dry Cloth | | Shape | Rectangular | | Size | 31 Inch, Single Bowl with Garbage Disposal | | Style | Undermount with Garbage Disposal | | Unit Count | 1 Count | | Upc | 840239610010 | ## Product Details - **Brand:** Kraus - **Color:** Black - **Material:** Granite - **Product Dimensions:** 17"D x 30.5"W x 9.25"H - **Size:** 31 Inch, Single Bowl and Garbage Disposal ## Images ![KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB - Image 1](https://m.media-amazon.com/images/I/51J6ctbciUL.jpg) ![KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB - Image 2](https://m.media-amazon.com/images/I/7183C8wQxGL.jpg) ![KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB - Image 3](https://m.media-amazon.com/images/I/815ZE6g0OlL.jpg) ![KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB - Image 4](https://m.media-amazon.com/images/I/81lmMHCRi-L.jpg) ![KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB - Image 5](https://m.media-amazon.com/images/I/71dx4YcRb9L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Frequently Bought Together - KRAUS 31 Inch Undermount Single Bowl Black Onyx Granite Kitchen Sink with WasteGuard™ Continuous Feed Garbage Disposal, KGU-413B-100-75MB - KRAUS Bolden Commercial Style 2-Function Single Handle Pull Down Kitchen Faucet in Stainless Steel, KPF-1610SS - Sumerain Wall Mount Bathroom Faucets,Single Handle with Brass Rough-in Valve in Modern Chrome Finish,1/2 NPT Standard Thread for US --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/376352806-kraus-31-inch-undermount-single-bowl-black-onyx-granite-kitchen](https://www.desertcart.us/products/376352806-kraus-31-inch-undermount-single-bowl-black-onyx-granite-kitchen) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-29*