Drop-In Slim Frost Top, 80-13/16"L, accommodates (3) full size sheet pan, auto defrost, electronic adjustable temperature control can be mounted to either side of condensing unit or remotely up to 4' from unit, 1" NPT drain, with control panel (shipped loose), designed for remote refrigeration (condensing unit by others), utilizes R513a refrigerant, Made in USA, cULus, NSF