The best feature of 2. 5 Ton 13 SEER Air Conditioner R-410a is that it uses environment friendly R-410A chlorine free refrigerant thus preventing damage to ozone layer. Apart from this, it boasts of energy efficient design and innovative operating sound cancellation technology. The cabinet comes with heavy gauge galvanized steel central unit and attractive gray powder paint finishing. Features of Goodman 2. 5 Ton 13 SEER Air Conditioner R-410a-GSX130301 : Comes with 10 years warranty on compressors 10 years warranty on parts Environment friendly chlorine free refrigerant energy efficient scroll compressor ARI certified and listed by ETL Weighs 180lbs 13 SEER rating Lug connection contactor Side and top access for maintenance Goodman sound control design High pressure switch