All-Aluminum evaporator coil;Optimized for use with R-32 refrigerant including circuits and manifolds;R-32 sensor designed for the life span of the coil;Factory-installed optimized metering device (piston);Standardized copper suction tube stub length;21" depth for easier attic access;Single front access panel;Foil-faced insulation covers the internal casing to reduce cabinet condensation;Vertical application;Galvanized, leather grain-embossed finish;Rust resistant, thermoplastic drain pans featuring a low water-retention design;DecaBDE-free thermoplastic drain pan with secondary drain connections;Drain pan rails designed to remove and reposition coils with ease without compromising structural integrity;UV-resistant drain pan;AHRI certified;ETL listed