I have some taps like these below. The silver tap has internal thread of approx 11.2 mm. The gold tap seems the same but has a metal insert and below that there is an o-ring. A 3/8 john guest insert fits into the gold tap to create the push fit. Anybody know if it is possible to get a john guest threaded fitting to screw into the tap. I tried a 1/4 bsp JG threaded fitting but it was too tight. The taps are by univeral dispensing solutions and seem pretty common. I was using the silver tap with a 1/2 inch female to male 90 degree brass connector, but would rather just use JG fittings.
Cheers
Cheers