Connecting 21mm tap connector to 19mm thread

[kitoog]

I have a plastic tap here with 3/4 inch male thread(19mm) and I want some sort of reducer so I can use a 1/2 inch(21mm thread) tap connector like this here http://www.h-i-e.co.uk/acatalog/Endfeed ... ector.html .I basically want to fit the tap connector to my plastic tap ,then add copper hop strainer.

 

[tubby_shaw]

Is This what you are after ?

 

[kitoog]

Could be it Tubby alright. Things can get confusing though for example 1/2 inch compression joint refers to i.d. of the joint not thread size, I think :)