Serge, Went to the local hardware chaiin store last night and went through the brass fittings. I found 1/4 hose compression to 1/8 npt male. There is a brass 1/8 to 1/8 female union, if you have room for it. The other option is to let the gentleman from Conn. order the correct AN fitting for you, which would be my choice.............See you, Bobby