The PresAir Trol TinyTrol DPDT latching air switch is designed for compatible pneumatic control systems that require a latching-style double-pole double-throw switching function. Latching air switches are useful because they hold their changed state after actuation, making them appropriate for control functions that need a maintained on or off position.This replacement is especially helpful when the original switch no longer latches correctly, has become erratic, or has stopped responding to air input altogether. Using the correct DPDT latching replacement can help restore the intended control behavior without altering the rest of the system.It is a practical service part when the installation depends on maintained-state pneumatic switching rather than momentary action. PresAir Trol TinyTrol DPDT latching air switch Designed for compatible maintained-state pneumatic control systems Useful when the original switch no longer latches properly Helps restore intended multi-pole switching behavior Supports more dependable control-system performance