this is a Dual Pressure Switch

While this is a direct OEM replacement board

The Johnson Controls A19ABC-40 uses a liquid-filled sensing element that operates mechanically

It is built for clockwise (CW) rotation with a standard 1/2-inch bore positioned on the intake side

Trane ROD1137 Support Rod 318820-201 this is a Dual PressureThe Trane ROD1137 Support Rod is a critical structural component engineered to maintain the precise alignment and stability of internal assemblies within Trane residential and commercial HVAC units. Measuring exactly 20 inches in length, this heavy duty HVAC motor mount support is designed to withstand the constant rotational torque and mechanical vibrations typical of high performance condenser fan systems. As a genuine OEM Trane replacement part, it