Originally Posted by beermonkey50
Yes you get a JG 1/2 in fitting that will screw into the back of a lot of taps.
look at their website catalog under Female adaptor 1/2" x 3/8". I cant speak for the ebay tap though
I'm not sure which of these
is appropriate. Do you mean a connector which threads on to the outside of the shank using the same threads as the nut which holds it to the tower?
If so, what sort of thread is usually used? I guess some sort of US specific thread?