LBP - Low Back Pressure APPLICATION, R134a Refrigerant, 115V 1 Phase 60Hz / 100V 1 Phase 50Hz 1/3+ HP, Low Start Torque (LST) 1320 BTU Capacity, 0.3125" Sweat (5/16" ODF) SUCTION LINE SIZE, 0.1875" DISCHARGE LINE SIZE, Reciprocating Compressor (Model:TPA1413YXA)