Thanks for the reply. Reason, I requested for help was that - my current PVB (Wilkins) is leaking, and i am in the process of replacing.
Thanks for the advise (I decided to go with Wilkins only after some google research and your advise)
Secondly ---- How to replace this ?? is it easy ??
It is my understanding that - I need to shutoff the Water Supply to whole House - and Just reaplace the PVB . AM I RIGHT??
Once againg I aprreciate your help.
Chris