The MRCOOL MCAEAWPEF18D21AA Signature Series 18K BTU Split System Stud Mount Air Handler is an indoor HVAC component designed to distribute conditioned air throughout residential spaces. It works with a compatible MRCOOL split-system heat pump or air-conditioning system by circulating air across the indoor coil for efficient heating or cooling. Its stud-mount design supports secure in... https://www.partshnc.com/mrcool-signature-series-stud-mount-air-handler-mcaeawpef18d21aa