---
product_id: 1520984
title: "KRAUS Black Onyx 31 in Undermount Granite Kitchen Sink KGU-413B | Quartz composite with metallic particles, heat-safe, non-porous surface resists stains, colored through to resist fading"
brand: "kraus"
price: "₨26779"
currency: SCR
in_stock: true
category: "Kraus"
url: https://www.desertcart.sc/products/1520984-kraus-black-onyx-31-in-undermount-granite-kitchen-sink-kgu
store_origin: SC
region: Seychelles
---

# 30.5" x 17" x 8.7" deep single bowl Non-porous, stain & scratch resistant 80% natural granite quartz composite KRAUS Black Onyx 31 in Undermount Granite Kitchen Sink KGU-413B | Quartz composite with metallic particles, heat-safe, non-porous surface resists stains, colored through to resist fading

**Brand:** kraus
**Price:** ₨26779
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate your kitchen game with timeless Black Onyx elegance!

## Quick Answers

- **What is this?** KRAUS Black Onyx 31 in Undermount Granite Kitchen Sink KGU-413B | Quartz composite with metallic particles, heat-safe, non-porous surface resists stains, colored through to resist fading by kraus
- **How much does it cost?** ₨26779 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/1520984-kraus-black-onyx-31-in-undermount-granite-kitchen-sink-kgu)

## 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

- • **Effortless Maintenance:** Smooth, non-porous surface resists stains and grime; gently rounded corners prevent buildup for quick wipe-downs.
- • **Sleek Undermount Design:** Seamlessly integrates with any countertop for a modern, clutter-free kitchen aesthetic and effortless cleanup.
- • **Complete Installation Kit:** Includes stainless steel drain assembly, basket strainer, kitchen towel, and mounting hardware—ready to elevate your kitchen instantly.
- • **Deep Single Bowl Capacity:** Generous 8.7-inch depth accommodates large cookware and minimizes splatter, perfect for busy culinary pros.
- • **Quartz Composite Durability:** Engineered from 80% natural granite for unmatched impact, scratch, and heat resistance—built to last a lifetime.

## Overview

The KRAUS Black Onyx 31-inch undermount kitchen sink combines premium quartz composite crafted from 80% natural granite with a sleek, deep single bowl design. Its non-porous, scratch-resistant surface and seamless undermount installation deliver both durability and modern style, while the included drain assembly and accessories ensure a hassle-free upgrade for any kitchen.

## Description

Product Description Beautiful and versatile, Quarza granite kitchen sinks are made from quartz composite material that offers the high-end look of natural granite. With gently rounded corners and smooth easy-to-clean surface, these sinks add elegant style to any kitchen. Undermount sink installation creates a clean transition from sink to countertop and simplifies cleanup by letting you wipe water and crumbs right into the sink. Durable sink for kitchen stands up to impact, scratches, and shock, and is colored all the way through to resist fading. Deep sink with gently sloped bottom promotes easy draining and has ample space for large cookware. Installation-ready kitchen sink comes with drain assembly, towel, hardware and template. Available in drop in sink design that installs with any countertop material From the Manufacturer Crafted from 80% natural granite, Kraus granite sinks feature the look, feel, and texture of natural stone. A thermal finishing process results in a tough, nonporous surface that is resistant to heat, chemicals, scratching, chipping, and discoloration that will stand up to a lifetime of use. With a variety of size, bowl configuration and installation options, a Kraus granite sink can make a sleek and functional addition to any kitchen.

## Features

- GRANITE KITCHEN SINK made from durable quartz composite that offers the elegant look of natural granite with resistance to impact, scratches, and shock – UNIVERSAL DESIGN with clean lines complements any kitchen style, from traditional to modern
- EXTERNAL DIMENSIONS: 30 1/2” L x 17” W x 9 1/4” D – BOWL DIMENSIONS: 28 3/8” L x 14 1/2” W x 8 7/8” D – MIN. CABINET SIZE: 33” – KIT INCLUDES: Black kitchen sink, stainless steel drain assembly with removable basket strainer, kitchen towel
- ADVANCED QUARTZ COMPOSITE SINK: Made from natural quartz and premium acrylic resin, with a hard, smooth, non-porous surface for durability and easy cleaning – Metallic particles create a shimmering effect with the elegant look and feel of natural granite
- UNDERMOUNT SINK INSTALLATION creates a modern look with seamless transition from sink to countertop and no exposed mounting deck to trap debris – Simplifies cleanup by letting you wipe water and crumbs right into the sink
- EASY TO CLEAN: Sink for kitchen with smooth non-porous surface resists stains and stands up to household cleaners – Gently rounded corners minimize build-up for easy maintenance – DEEP KITCHEN SINK bowl helps reduce kitchen mess and contains splatter
- Overall Height: 8.66 Inch
- Overall Width: 17.09 Inch
- Overall Length: 30.47 Inch
- Installation Type: Undermount
- Drain Outlet Connection: 3.5"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00E6SP5R0 |
| Best Sellers Rank | #85,600 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #106 in Single Bowl Kitchen Sinks |
| Brand Name | Kraus |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,079) |
| Drain Type | Pop-Up |
| Finish Types | Black Onyx |
| Global Trade Identification Number | 00846639017541 |
| Included Components | Basket strainer, Kitchen Towel, Mounting Hardware, Sink |
| Installation Type | Undermount |
| Item Dimensions D x W x H | 17.09"D x 30.47"W x 8.66"H |
| Item Type Name | Kraus Quarza Standard Kitchen Sink |
| Item Weight | 30.4 pounds |
| Manufacturer | Kraus |
| Manufacturer Part Number | KGU-413B |
| Manufacturer Warranty Description | Limited Lifetime |
| Material Type | Granite |
| Model Number | KGU-413B |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Care Instructions | Wipe with Dry Cloth |
| Shape | Rectangular |
| Size | 31 Inch, Single Bowl without Garbage Disposal |
| Style | Undermount |
| UPC | 846639023276 846639017541 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Kraus
- **Color:** Black
- **Material:** Granite
- **Product Dimensions:** 17.09"D x 30.47"W x 8.66"H
- **Size:** 31 Inch, Single Bowl without Garbage Disposal

## Images

![KRAUS Black Onyx 31 in Undermount Granite Kitchen Sink KGU-413B | Quartz composite with metallic particles, heat-safe, non-porous surface resists stains, colored through to resist fading - Image 1](https://m.media-amazon.com/images/I/71zwf6EYmaL.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Questions & Answers

**Q: Can double check if it comes with the strainer and towel?**
A: It does come with a strainer.

**Q: is it dark b;ack or more of a dark, charcoal?**
A: Black. It is a great sink, easy to clean and holding up to kids.

**Q: Our counter top hole size is 31x20. Is this feasible?**
A: The hole in my counter for this sink as an undermount is 28.5x18.5". I think your 31" dimension would be too big, even if the sink were drop-in mounted.

**Q: Is the color shiny black or matte black?**
A: Thanks for your inquiry. 

Our Granite inks are matte black. 

Thanks

## Frequently Bought Together

- KRAUS Quarza 31-inch Undermount Single Bowl Granite Kitchen Sink in Black Onyx, KGU-413B
- Kraus Kitchen Sink Strainer for 3.5-Inch Drain Openings in Black, PST1-BL
- KRAUS Bolden Commercial Style 2-Function Single Handle Pull Down Kitchen Faucet in Matte Black, KPF-1610MB

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-08-31*