Does this safely prevent back flow contamination of a shower head that could be submerged in water?
Does this eliminate the need of a retaining clip on the riser rail?
Hi DCPlumbing, As far as we are aware, this is not WRAS approved. It is normally fitted between the shower mixer and the shower hose to prevent possible back siphonage and contamination, not at the top end of the hose below the handset. I hope this information is of help to you.
Answered by: Pebo
Date published: 2020-10-01