The MRCOOL MDPHK06D Universal Electric Heat Kit for Packaged Systems is an electric heating accessory designed for compatible packaged HVAC equipment. It uses electric resistance heating elements to warm air as it passes through the system, providing supplemental heat when additional capacity is needed. Suitable for packaged heat pump and air conditioning systems, this heat kit suppor... https://www.partshnc.com/mrcool-universal-series-6kw-electric-heat-kit-for-packaged-systems-mdphk06d