G 1/4 is 1/4BSPP

Good site that Dave - added to my Favourites already.

60bar is around 860psi, but a 2kg CO2 bottle with 2kg of gas is only 700ish psi when I put a gauge on one years ago, so should work - FRA rules say that 1000psi prv has to be certificated, maybe we could get Kane to test and calibrate some.