Nat Gas Safety, 1/2" FPT in, 3/4" & 1/2" Out. w/ (2) 1/2" Side Outs w/ Plugs, 3/4" x 1/2" Reducer Bushings, 1/4" CCT Pilot Out, Uses Thermocouple. for Nat to LP Gas Conversion Kit use # 51-1470 Model 7000 Ber-120, 120 Vac Actuator, Mfg# 700-452