The MRCOOL MHK15H Signature Series Air Handler Heat Kit with Breaker is an electric heating accessory designed for compatible MRCOOL Signature Series air handlers. It provides supplemental heat by converting electrical energy into heat, which is distributed through the air handler’s blower system to warm conditioned spaces. The integrated circuit breaker helps provide electrical prote... https://www.partshnc.com/mrcool-signature-heat-kit-mhk15h