the F-121502 is a staple for maintenance on high-demand HVAC ignition systems

leak-free interface for standard differential pressure gauge hoses

maintaining factory-spec airflow

ensuring consistent pull-in and dropout voltages

Key Benefits Regulates water and steam efficiently with high-temperature resistance up to 281°F

Resideo ZD18X6TZ Damper 322057-301 the F-121502 is a stapleThe Resideo ZD18X6TZ is a heavy duty 18x6 zone damper designed for precision airflow management in forced air zoning systems. Built with a robust extruded aluminum frame and parallel blades, this rectangular motorized damper ensures low leakage performance and structural integrity in high static pressure environments. It features a high torque 24VAC synchronous motor that operates on a power close, spring return open logic, making it a reliable fail