Head Pressure Control Automatic ODF Connection Size (In.) 1-3/8 x 1-1/8 x 1-1/8 Port (In.) 3/4 in Design Pressure (PSIG) 450 psig Set Points 180 Brass Body Copper Fittings LAC10-180 Application Low Ambient Control For Use With Refrigeration and Air Conditioning Systems UL SA-5460