while the FKM or NBR seal material (depending on specific coil configuration) ensures leak-free operation

this filter features a deep-pleated design that maximizes surface area

Standardized Electrical Specs: Operates on a standard 115V circuit

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

Laars Heating Systems R2008400 Flow Switch R-407C while the FKM or NBRThe 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