Found an old Scubapro SPG. Needs a hose so took off existing one and see this little brass nipple/socket setup as opposed to the standard o-ring sealed insert. Don't believe the female hose end is currently available. What to do? Anyone have a schematic for these puppys? Haven't taken the nipple end out of the housing - not sure I want to. Or is the other end of the nipple piece a standard o-ring sealed end? What can I do to get it serviceable again? Thanks. Mark