---
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: "€ 1334.91"
currency: EUR
in_stock: true
category: "Kraus"
url: https://www.desertcart.sk/products/1520984-kraus-black-onyx-31-in-undermount-granite-kitchen-sink-kgu
store_origin: SK
region: Slovakia
---

# Heat-safe, resists high temperatures 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:** € 1334.91
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate your kitchen with the sleek power of 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?** € 1334.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/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

- • **Complete Installation Kit:** Includes stainless steel drain assembly, basket strainer, towel, and mounting hardware for hassle-free setup.
- • **Deep Single Bowl Capacity:** Generous 8.66-inch depth accommodates large cookware and minimizes kitchen mess.
- • **Seamless Undermount Design:** Modern, clean countertop integration that wipes crumbs and spills straight into the sink.
- • **Quartz Composite Durability:** Engineered with 80% natural granite for unmatched impact and scratch resistance.
- • **Fade-Resistant Black Onyx Finish:** Color infused through the material ensures lasting elegance without discoloration.

## Overview

The KRAUS Black Onyx 31-inch undermount kitchen sink combines 80% natural granite quartz composite with metallic particles for a shimmering, heat-safe, and non-porous surface. Its deep single bowl and seamless undermount installation simplify cleanup while resisting stains, scratches, and fading. Complete with a stainless steel drain assembly and accessories, this sink offers durable luxury designed to complement any kitchen style with a lifetime of performance.

## 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 | #74,428 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #92 in Single Bowl Kitchen Sinks |
| Brand Name | Kraus |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,077) |
| 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 |
| Product Care Instructions | Wipe with Dry Cloth |
| Shape | Rectangular |
| Size | 31 Inch, Single Bowl |
| 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

## 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 **Color, Size** 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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**Shop now:** [https://www.desertcart.sk/products/1520984-kraus-black-onyx-31-in-undermount-granite-kitchen-sink-kgu](https://www.desertcart.sk/products/1520984-kraus-black-onyx-31-in-undermount-granite-kitchen-sink-kgu)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-09*