3 1/2" Face

The Schneider Electric (Barber Colman) M573-3520 Actuator is a heavy-duty pneumatic damper actuator designed for precise proportional or two-position control in commercial HVAC systems

ensuring backward compatibility with existing pneumatic infrastructure

The compact footprint allows for seamless HVAC gas line filtration retrofits in tight mechanical rooms without requiring extensive repiping

Johnson Controls P70DA-2 Pressure Control R-410A 3 1/2" FaceThe Johnson Controls P70DA 2 is a heavy duty single pole high pressure control engineered specifically for HVACR ammonia applications. This SPST pressure switch features a 1 4 inch female NPT pressure connector and provides a reliable cut out range from 50 to 450 psi. Designed for critical safety monitoring, the unit operates on an open high close low logic with a manual reset lockout, ensuring the system remains offline until a technician inspects