---
product_id: 551284716
title: "Premium Quartz Kitchen Sink 21x18x8.5 Inches | Smoky Black Granite Single Bowl Composite Sink with Stainless Steel Waste Coupling & Flexible Drain Pipe | Dual Mount | 10 Year Warranty"
brand: "hardstone"
price: "€ 586.11"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/551284716-premium-quartz-kitchen-sink-21x18x8-5-inches-smoky-black-granite
store_origin: HR
region: Croatia
---

# Spacious 21x18x8.5 inch deep basin Dual mount with complete installation kit Premium quartz composite for ultimate durability Premium Quartz Kitchen Sink 21x18x8.5 Inches | Smoky Black Granite Single Bowl Composite Sink with Stainless Steel Waste Coupling & Flexible Drain Pipe | Dual Mount | 10 Year Warranty

**Brand:** hardstone
**Price:** € 586.11
**Availability:** ✅ In Stock

## Summary

> 🖤 Sink into style and strength with HARDSTONE’s premium quartz masterpiece!

## Quick Answers

- **What is this?** Premium Quartz Kitchen Sink 21x18x8.5 Inches | Smoky Black Granite Single Bowl Composite Sink with Stainless Steel Waste Coupling & Flexible Drain Pipe | Dual Mount | 10 Year Warranty by hardstone
- **How much does it cost?** € 586.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/551284716-premium-quartz-kitchen-sink-21x18x8-5-inches-smoky-black-granite)

## Best For

- hardstone enthusiasts

## Why This Product

- Trusted hardstone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **10-Year Worry-Free Warranty:** Confidence backed by a decade of protection against defects and wear.
- • **Versatile Dual Mount Design:** Choose between flush or countertop installation for seamless kitchen integration.
- • **Heavy-Duty Granite Composite:** Built to resist impact, fire, and noise—durability meets tranquility.
- • **Bold Smoky Black Matte Finish:** Elevate your kitchen with a sleek, modern quartz sink that commands attention.
- • **Generous Deep Basin Dimensions:** Accommodates oversized cookware effortlessly, making cleanup a breeze.

## Overview

The HARDSTONE Premium Quartz Kitchen Sink is a 21x18x8.5 inch single bowl composite sink featuring a smoky black matte finish with micro-quartz particles. Designed for both flush and countertop mounting, it includes a stainless steel waste coupling and flexible drain pipe for easy installation. Crafted from durable granite composite, it offers superior resistance to scratches, impact, fire, and noise, backed by a 10-year warranty covering manufacturing defects.

## Description

HARDSTONE Quartz Kitchen Sink (21 x 18 x 8.5 inch) Black Stone Square Quartz Single Bowl Kitchen Sink | Matt finish with Accessories (Waste Coupling and Waste Pipe) (BLACK)
kitchen sinks are constructed with quartz material for super sturdy and solidity, equipped with the highest scratch resistance, Further, it come with a coating that gives a classy look.
The sink comes complete with essential accessories, streamlining your kitchen setup. Accessories like a drain strainer, grid, and mounting hardware are included, providing added value and ensuring you have everything you need for installation and maintenance.

## Features

- 𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐒𝐦𝐨𝐤𝐲 𝐁𝐥𝐚𝐜𝐤 𝐀𝐞𝐬𝐭𝐡𝐞𝐭𝐢𝐜𝐬: This variant delivers a rich, matte black finish accented with micro-quartz particles. It creates a bold, ultra-modern contrast against lighter countertops and sleek metallic faucets.
- 𝐏𝐫𝐞𝐜𝐢𝐬𝐞 𝐃𝐞𝐞𝐩-𝐁𝐚𝐬𝐢𝐧 𝐃𝐢𝐦𝐞𝐧𝐬𝐢𝐨𝐧𝐬: The sink features a generous total length of 53 cm, a total width of 46 cm, and a deep 22 cm basin (approx. 21x18x8.5 inches). The spacious internal bowl measures 47 cm by 40 cm, leaving plenty of room for oversized cookware.
- 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐊𝐢𝐭 & 𝐃𝐮𝐚𝐥 𝐌𝐨𝐮𝐧𝐭𝐢𝐧𝐠: Built for seamless kitchen integration, the unit can be configured as an over-the-counter Counter Top Mount or a seamless Flush Mount. The complete setup package includes a premium square stainless steel waste coupling strainer and a flexible grey waste pipe.
- 𝐇𝐞𝐚𝐯𝐲-𝐃𝐮𝐭𝐲 𝐑𝐞𝐬𝐢𝐬𝐭𝐚𝐧𝐜𝐞 𝐏𝐚𝐜𝐤:Built from an exceptionally tough granite composite material, this sink features high durability against impact and a robust, fireproof composition. The thick composite structure also functions as a natural soundproof barrier to deaden water echoes and clattering dishes.
- 𝟏𝟎-𝐘𝐞𝐚𝐫 𝐖𝐚𝐫𝐫𝐚𝐧𝐭𝐲: Covered against leakage, manufacturing defects, cracking, chipping, warping, discoloration, and fading; if any covered defect arises during the warranty period, Hardstone will repair or replace the product at its sole discretion as per the company's warranty policy.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B0CFQFGBP8 |
| Best Sellers Rank | #3,401 in Home Improvement (See Top 100 in Home Improvement) #8 in Single Bowl |
| Brand Name | HARDSTONE |
| Colour | BLACK |
| Country Of Publication | India |
| Customer Reviews | 4.2 4.2 out of 5 stars (196) 4.2 out of 5 stars |
| Drain Type | Pop-Up |
| Included Components | 1- Drain Coupling, 1- Drain Pipe, 1- Kitchen Sink, |
| Installation Type | Flush-mount, Under-mount and Top-mount |
| Item Dimensions D X W X H | 46D x 53W x 22H Centimeters |
| Item Type Name | Quartz Sink |
| Item Weight | 11 Kilograms |
| Manufacturer | HARDSTONE KITCHEN SINK |
| Manufacturer Warranty Description | 10 Years Warranty Against Any Manufacturing Defect |
| Material Type | Quartz |
| Model Number | 21x18_SMOKY_LACK |
| Number Of Items | 1 |
| Packer Contact Information | Hardstone Contact: +91 99133 33900 |
| Product Care Instructions | Wipe with Dry Cloth |
| Product Finish Type | Matt |
| Shape | Rectangular |
| Size | 21x18 |
| Style | casual |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** HARDSTONE
- **Colour:** Smoky Black
- **Material:** Quartz
- **Product Dimensions:** 46D x 53W x 22H Centimeters
- **Size:** 21x18

## Images

![Premium Quartz Kitchen Sink 21x18x8.5 Inches | Smoky Black Granite Single Bowl Composite Sink with Stainless Steel Waste Coupling & Flexible Drain Pipe | Dual Mount | 10 Year Warranty - Image 1](https://m.media-amazon.com/images/I/61cgLJ-lu3L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quartz sink
*by  on Reviewed in India 15 June 2026*

Good product. Premium look for you kitchen.

### ⭐⭐⭐⭐ Good product
*by  on Reviewed in India 4 June 2026*

Good product

### ⭐⭐⭐⭐⭐ Value for money
*by  on Reviewed in India 1 August 2026*

Excellent finish!

## Frequently Bought Together

- Hardstone Quartz Kitchen Sink (18 x 21 x 8.5 In, 10mm Thickness) – Mett Finish Single Bowl Sink with Waste Coupling & PVC Pipe – Smooth Finish, Non-Fading, UV Protection, Scratch & Heat Resistant
- CROCODILE 304 GRADE 24"x18"x10" Kitchen Sink, Satin Finish
- ALTON GRC3780 Brass Wall Mixer with Provision for Over Head Shower and 190mm Long Bend Pipe (Chrome)

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**Shop now:** [https://www.desertcart.hr/products/551284716-premium-quartz-kitchen-sink-21x18x8-5-inches-smoky-black-granite](https://www.desertcart.hr/products/551284716-premium-quartz-kitchen-sink-21x18x8-5-inches-smoky-black-granite)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-25*