the 8101111407 is an HGP (High Gas Pressure) model designed to trip on a rise in pressure

eliminating the need for mounting modifications in the field

It operates effectively as a 3-15 psi receiver gauge

Key Benefits Precise Pressure Calibration: Engineered to match specific OEM thresholds

the Parker 12F25C2-821R is rated for fluid power systems where the solenoid valve must maintain a tight seal under varying pressure loads

Lochinvar & A.O. Smith 100170652 Sensor Kit 30067439-890 the 8101111407 is an HGPThe Lochinvar & A. O. Smith 100170652 Sensor Kit is a critical OEM replacement part engineered for precise flue gas temperature monitoring in Knight boiler systems and high efficiency water heaters. This flue temp sensor kit (cross referenced as TST3403) serves as a vital safety component, providing real time thermal reporting to the integrated control board. By continuously tracking exhaust discharge temperatures, the 100170652 flue sensor prevents