Weil McLain 381-800-475 Assembly Freon designed to provide rigid mechanical

designed to provide rigid mechanical connection between damper actuators and shaft crank arms

this specific part number includes the FNPT threaded female union inlet and the standard female NPT outlet for a simplified installation process

Reduces harmonic vibration and mechanical noise during high-speed blower cycles

The H-921 uses a 2-wire

ensuring long-term proportional control under demanding cycles

Weil McLain 381-800-475 Assembly Freon designed to provide rigid mechanicalThe Weil McLain 381 800 475 Assembly is a 5" automatic vent damper and actuator kit engineered for high performance flue gas management in gas fired boiler systems. As a heavy duty OEM replacement part, this assembly is the direct successor to the discontinued 510 512 345 and the Effikal RVGP KS 5 BKF. Designed for precision, the galvanized steel damper body works in tandem with a 24 VAC motorized actuator to mitigate standby heat loss by sealing the