Johnson Controls P74DA-10 Pressure Control 30067439-890 58" WC Calibration: Specifically engineered

58" WC Calibration: Specifically engineered to match the OEM airflow specifications of Reznor heating systems for accurate safety circuit activation

Kyocera Silicon Nitride: Advanced material construction provides extreme durability and eliminates the fragility common with older carbide elements

It is built with a stainless steel outer jacket to prevent heat blistering and a brass sheath that provides critical insulation against high ambient temperatures

Durable Construction: High-quality cast iron housing ensures long-term structural integrity in demanding environments

What is the difference between 26B1A0E and 26B1AOE

Johnson Controls P74DA-10 Pressure Control 30067439-890 58" WC Calibration: Specifically engineeredDifferential Pressure Control, DPST, Close on Pressure Increase, 8 Psi to 70 Psi, 7 Psi to 30 Psi Adjustable Differential, 1 4" Npt Connection