The P10BG-3 switch is a versatile and reliable component for HVAC systems. With its single-pole, double-throw configuration and close differential, it can be used for a variety of applications, including temperature control and pressure monitoring. The switch has a range of 2 to 20 pounds, making it suitable for both low and high-pressure systems. Its SPDT design ensures that it can handle both heating and cooling applications with ease. Overall, the P10BG-3 switch is an excellent choice for HVAC service technicians looking for a dependable component to integrate into their systems.