This hose is designed to replace appointed for a typical "metal tubing" which calcify after some time and should be cleaned only with a high expenditure of time. Quite different this model: a beautiful, smooth surface which can be wiped off with a gentle cleanser. This saves time when cleaning the bath. In addition, the tube at the bottom is equipped with a flat connecting ring that fits perfectly to the valve and not too far on is how long the connection with some cheap hoses.
The long side of the tube fits perfectly into the corresponding holders of Grohe, eg "28622000 Grohe Relexa ...". If necessary, the holders equal with, instead of just the tubing.
The seals are also included, so that the hose can be changed in no time.
A truly excellent product that I can highly recommend.