Hi, I have an ex Californian Berlin 1979 camper and want to extend the output from the blanked off T piece to an additional gas device (this is beyond the regulator). I am in the UK and want to identify the thread type and size so that I can continue my quest to find a correct adapter. My objective is to convert the US thread to BSP (I think that what I have is 1/2" NPT but need the confirmation). The camper has been totally restored now and with a new engine is running very well. It was originally imported into California 27Jul79 and spent its life in or around Los Gatos. Thanks - Simon.