the following example is
for you reference.
Our factory produce keg couplers in good quality. brass body, nickle finish. SS304 probe, SS304 handles. Keg couplers A, G, S, D, F, M type available. Our keg coupler is mainly exported to Russia, Germany.
2. the keg coupler nut is G5/8". It's connected with the pipe 7mm or 8mm.
3 our keg couplers tested before packing, we are of good quality and competitve price