The Master-Bilt 19-13773 Electric Expansion Valve helps regulate refrigerant flow in compatible commercial refrigeration systems, supporting proper cooling and defrost operation. Designed as an SER-6 valve, this component uses an electrical control signal to adjust the refrigerant passage according to the system's operating requirements. By controlling refrigerant flow, it helps maint... https://partsfe.ca/master-bilt-19-13773-electric-expansion-valve-ser-6/2-19-13773.html