GSZB40481 AMST48C14 Energy-efficient compressor SmartShift technology to ensure quiet reliable defrost Single-speed PSC condenser fan motor Factory-installed bi-flow liquid-line filter drier Factory-installed suction-line accumulator Factory-installed compressor crankcase heater Ground lug connection AHRI Certified; ETL Listed Internal factory-installed thermal expansion valves for cooling and heat pump applications 7mm evaporator coil tube size on 1oe - 3oe Ton models and ?" evaporator coil tube size on 4 to 5 Ton models Direct-Drive, 9-speed ECM blower motor All-aluminum evaporator coil with high performance coated fin stock Coil mounting track for quick repositioning Additional Details ------------------------------ Bullet point: GSZB40481 Energy-efficient compressor SmartShift technology to ensure quiet reliable defrost Single-speed PSC condenser fan motor Factory-installed bi-flow liquid-line filter drier Factory-installed suction-line accumulator Factory-installed compressor crankcase heater Ground lug connection AHRI Certified; ETL Listed Product description: GSZB40481 AMST48C14 Energy-efficient compressor SmartShift technology to ensure quiet reliable defrost Single-speed PSC condenser fan motor Factory-installed bi-flow liquid-line filter drier Factory-installed suction-line accumulator Factory-installed compressor crankcase heater Ground lug connection AHRI Certified; ETL Listed Internal factory-installed thermal expansion valves for cooling and heat pump applications 7mm evaporator coil tube size on 1oe - 3oe Ton models and ⅜" evaporator coil tube size on 4 to 5 Ton models Direct-Drive, 9-speed ECM blower motor All-aluminum evaporator coil with high performance coated fin stock Coil mounting track for quick repositioning