MRCOOL MCHP30BNPA Signature Series 2.5 Ton Horizontal Cased Evaporator Coil is a heat exchange component designed to enhance the performance of compatible air conditioning and heat pump systems. It works by allowing refrigerant to absorb heat from indoor air as air passes across the coil, supporting efficient cooling and humidity control. https://www.partshnc.com/mrcool-signature-series-2-5-ton-horizontal-evaporator-coil-mchp30bnpa