The Rheem-Ruud PD425161 2-Pole Relay with Rectifier Control Board Kit is a replacement electrical control assembly designed for compatible Rheem-Ruud HVAC equipment. The relay switches electrical loads between system components, while the rectifier converts AC power to DC power for circuits requiring regulated direct current. Commonly used in air conditioners, heat pumps, and other HV... https://www.partshnc.com/pd425161-rheem-ruud-relay-2-pole-w-rectifier-control-board-kit