I had the assignment cold = blue I have found, but it is also ok. The product works flawlessly and thanks to two different threads (inside and outside) should it fit to virtually any faucet.
Addendum: After three months, the part is broken. It squeaks irregular loud and the light flickers. Presumably, the bearing is worn. Calcified the essay is not that I have reviewed.
For a permanent stable part I would gladly pay more, this is obviously built too cheap.
