I basically wasted my money.
I have electric water heaters and in order to have hot water, there needs to be pressure, meaning that the bathroom faucet needs to release as much water as possible.
I bought the Grohe because I thought it would make a difference.
As a result, I cannot take a bath.
The pressure is so low that it cannot stabilize the hot water.
I don't know how they take baths in Germany, but here, I hear Grohe and I simply never again.
***You will see that other faucets have reduced water pressure, but it is simply a rubber band that you can remove if you want.
This specific faucet does not have anything like that.
In other words, the entire faucet is designed to reduce water pressure.