Hubbell - 36C-304-02 Pressure Reducing Valve. WATER PRESSURE REDUCING VALVE, 3/4" SWEAT X 3/4" FPT & UNION THD, 25-75 PSI, 4-1/2" OD, 180DEG F, MAX INLET 400 PSI, UNION IS 3/4" MALE SAE X 3/4" FPT., ONLY COMES WITH 1 UNION, BOTH SIDES OF VALVE ARE THREADED 3/4" FPT AND BOTH SIDES WILL EXCEPT THE UNION FITTING. HUBBEL BOOSTER