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Grohe K400 composite sink with drainboard

Top-mounted sink, 50 cm, 78 cm
Delivered between 23.1.2026 and 14.2.2026
10 pieces in stock at supplier
free shipping

Total width2

Product details

The Grohe K400 composite sink is a worthwhile choice. It is durable and maintains its elegant appearance for many years. The single basin with a drainer area for installation on the countertop (78 x 50 cm) has the advantage of being usable from both sides. It is made from 80% quartz and 20% acrylic resin, as well as a hardening composite material, making it resistant to stains, scratches, heat, and dents. The inner basin has a generous depth of 20.5 cm. The seamlessly cast flawless surface is easy to clean, low-maintenance, and 100% food hygienic. The elegant, contemporary surface in Granite Black does not react to UV light and retains its deep color even after years of use. Thanks to Grohe Whisper Technology, the composite construction is extremely quiet under running water. The automatic waste drain features a stylish round actuator and is operated by a remote control. The drain is accessed from the outside, eliminating the need to reach into dirty wastewater to pull the plug. The Grohe QuickFix system has two pre-punched holes, making installation quick and straightforward. This sink can also be upgraded with an intelligent Grohe actuator.

Key specifications

Colour
Black
Material
Quartz composite
pool shape
Rectangular
mounting style
Overlying
Documents
Item number
16702702

General information

Manufacturer
Grohe
Category
Sink
Manufacturer no.
31639AP0
Release date
25.9.2021

Colour

Colour
Black
Exact colour description
Black

Material

Material group
Stone
Material
Quartz composite

Sink Features

Type of sink
Top-mounted sink
mounting style
Overlying
pool shape
Rectangular
Number of basins
1x
Basin arrangement
Basin right
Additional properties
Drainer

Dimensions basin 1

Depth
50 cm
Width
78 cm

Product dimensions

Total depth
50 cm
Total width
78 cm
Weight
40 kg

Voluntary climate contribution

CO₂-Emission
Climate contribution

Package dimensions

Length
92 cm
Width
64 cm
Height
40 cm
Weight
40 kg

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Sink» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Grohe
    Not enough data
  • 1.Franke
    1.1 %
  • 2.Blanco
    2.4 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Grohe
    Not enough data
  • 1.Franke
    2 days
  • 2.Blanco
    8 days

Return rate

How often is a product of this brand in the «Sink» category returned?

Source: Digitec Galaxus
  • Grohe
    Not enough data
  • 1.Blanco
    6.8 %
  • 2.Franke
    7 %
Source: Digitec Galaxus