The MRCOOL MCVP48CNPA Signature Series 4 Ton Upflow Cased Evaporator Coil is an indoor HVAC component designed for use with compatible R-410A air conditioning and heat pump systems. It works by allowing refrigerant to absorb heat from indoor air as it passes over the coil, supporting efficient cooling and temperature regulation. Commonly installed with furnaces and air handlers in upf... https://www.partshnc.com/mrcoolr-signature-series-upflow-coil-mcvp48cnpa