A swivel fitting is specifically configured for mounting a pressure regulator and a solenoid to a valve having a female threaded solenoid mounting port. The swivel fitting includes a generally cylindrical upper body having a first female threaded bore for having a male threaded neck of either a solenoid or a pressure regulator screwed into the first bore. A generally cylindrical lower body is mated to the upper body and has a male threaded segment for screwing into the female threaded solenoid mounting port of a valve. A swivel body surrounds and encloses the upper body and the lower body and has an extension with a second female threaded bore for having the male threaded neck of either the solenoid or the pressure regulator screwed into the same. The swivel body is freely rotatable relative to the cylindrical bodies. A pair of valve seats in the swivel body and communicating ports and chambers allow the solenoid to open and close flow through the valve and the pressure regulator to regulate flow through the valve when the solenoid and the pressure regulator are each screwed into one of the first and second bores.