GSH Commercial   The Goodman® GSH Commercial Heat Pump cabinet features a powder-paint finish over heavy-gauge galvanized steel that provides premium durability and improved UV protection.  The unit’s attractive louvered metal guard protects the coil from damage and strengthens the unit.   Standard Features Energy-efficient compressor with internal pressure relief valve R-22 refrigerant holding charge High-capacity, steel-cased filter dryer High-and low-pressure switches Brass liquid and suction line service valves mounted at a 90° angle with sweat connections and service ports High-efficiency copper tube/aluminum fin coil Complies with ASHRAE Standard 90.1 ARI Certified; ETL Certified