HBP - High Back Pressure APPLICATION, R134a Refrigerant, 208-230V 1 Phase 60Hz / 200V 1 Phase 50Hz 3/4 HP, High Start Torque (HST) 9063 BTU Capacity, 5/8" FLARE (SAE) SUCTION LINE SIZE, 0.25" Sweat (1/4" ODF) DISCHARGE LINE SIZE, Reciprocating Compressor (Model:AJA4492YXD)

HBP/AC - Air Conditioning APPLICATION, R22 Refrigerant, 265V 1 Phase 60Hz, 1 1/2 HP, Low Start Torque (LST) 18500 BTU Capacity, 0.5" Sweat (1/2" ODF) SUCTION LINE SIZE, 0.3125" DISCHARGE LINE SIZE, Reciprocating Compressor (Model:AJA5518EXV)

MBP ? Medium Back Pressure APPLICATION, R12 Refrigerant, 115V 1 Phase 60Hz / 100V 1 Phase 50Hz 3/4 HP, High Start Torque (HST) 6650 BTU Capacity, 5/8" FLARE (SAE) SUCTION LINE SIZE, 0.3125" Sweat (5/16" ODF) DISCHARGE LINE SIZE, Reciprocating Compressor (Model:AJA7465AXA)

MBP ? Medium Back Pressure APPLICATION, R12 Refrigerant, 115V 1 Phase 60Hz / 100V 1 Phase 50Hz 3/4 HP, High Start Torque (HST) 6650 BTU Capacity, 0.5" Sweat (1/2" ODF) SUCTION LINE SIZE, 0.375" DISCHARGE LINE SIZE, Reciprocating Compressor (Model:AJA7465AXA)

MBP ? Medium Back Pressure APPLICATION, R12 Refrigerant, 115V 1 Phase 60Hz / 100V 1 Phase 50Hz 3/4 HP, High Start Torque (HST) 6650 BTU Capacity, 0.375" Sweat (3/8" ODF) SUCTION LINE SIZE, 0.375" DISCHARGE LINE SIZE, Reciprocating Compressor (Model:AJA7465AXA)