Rheem-Ruud 42-19737-01 Sequencing Relay ensuring a precision face-seal fit

ensuring a precision face-seal fit in standard 20x20x1 air filter tracks

Durable Construction: Manufactured using robust materials that resist wear and degradation in harsh industrial environments

protecting electrical service components

making it a standard choice for technicians maintaining commercial refrigeration

ensure the disc has direct exposure to the airflow

Rheem-Ruud 42-19737-01 Sequencing Relay ensuring a precision face-seal fitThe Rheem Ruud 42 19737 01 Sequencing Relay is a critical HVAC control component engineered for precise load management in electric furnaces and heat pump systems. As a 24V DPST NO sequencing relay, this unit utilizes Double Pole Single Throw Normally Open logic to staged start heating elements or blowers, preventing the excessive amperage spikes typically associated with simultaneous equipment activation. Designed as a direct OEM replacement part, it