Key Benefits Precision Thermal Calibration: Engineered with a fixed 225°F open and 145°F close setpoint for consistent safety response

This pilot-assisted

This positive positioner kit ensures precise control of the actuator stroke in response to varying control signals

you need a reliable conversion that doesn't compromise the equipment's pressure regulation or combustion stability

For contractors performing a Lennox 51W93 installation

Laars Heating Systems R2008400 Flow Switch R-407C Key Benefits Precision Thermal Calibration:The Laars Heating Systems R2008400 Flow Switch is a critical safety and operational component designed for high performance hydronic systems. This replacement flow switch regulates fluid movement in demanding environments, ensuring that the burner circuit only energizes when sufficient flow is detected. As a veteran grade Laars boiler part, the R2008400 features a durable paddle style mechanism compatible with various pipe diameters and is a direct