MRCOOL MCMP4860DOTB 4–5 Ton Multi-Positional Pre-Charged Evaporator Coil is a heat transfer component designed for compatible air conditioning and heat pump systems. It works by circulating refrigerant through the coil to absorb heat and humidity from indoor air, delivering efficient cooling and improved comfort. https://www.partshnc.com/mrcool-4-5-ton-multi-positional-pre-charged-evaporator-coil-mcmp4860dotb