The All-Aluminum evaporator coil is constructed from aluminum tubing, fins and end plates giving you a single metal solution for outstanding, time-tested, heat transfer performance properties. If you're looking for an evaporator coil that offers enhanced durability, coupled with enhanced performance as tested in our labs, this is the product for you. At GOODMAN, we believe in American dependability.Compact and lightweight all-aluminum evaporator coil with AlumaFin7 technologyOptimized for use with R-410A refrigerantCheck flowrator for cooling and heat pump applicationsVertical application21 in. depth for easier attic accessFoil-faced insulation covers the internal casing to reduce cabinet condensationAHRI certifiedETL listedRust resistant, thermoplastic drain pans featuring a low water-retention designGalvanized, leather grain-embossed finish Prop 65 warning PROP 65 WARNING FOR CALIFORNIA CONSUMERS - Cancer and reproductive Harm - https://www.p65warnings.ca.gov