Built for durability in high-demand hydronic environments

If you are servicing Star roller grills

the 204328 provides the exact set-point calibration needed to prevent dangerous flue gas recirculation or short cycling caused by fluctuating air pressure

this component provides essential low-voltage power for thermostats

particularly in the Lennox G-series and WhisperHeat units

Johnson Controls P70AA-2 Pressure Control 30067439-890 Built for durability in high-demandIntegrate the Johnson Controls P70AA 2 Pressure Control into your commercial refrigeration or air conditioning system for reliable head pressure fan cycling and system protection. This single pole high pressure control features a SPST switch action designed to close on a pressure rise and open on a pressure drop (Close High, Open Low). Engineered for versatility, it is fully compatible with non corrosive refrigerants including R 12, R 22, R 134A, R