The Tecmark latching air switch in SPDT format is designed for compatible pneumatic control applications that need a single-pole maintained-state response. Switches like this are useful because they help the system change and hold state with a brief air signal instead of requiring constant contact from the user.This replacement is especially useful when the original switch is erratic, no longer latches consistently, or has failed. Using the correct SPDT latching format helps keep the control behavior closer to the original design of the system.It is a practical service choice when reliable maintained-state pneumatic switching is necessary for proper system restoration. Tecmark latching air switch in SPDT format 25 amp rated for compatible control systems Helps restore dependable maintained-state switching Useful when the original switch is worn or unreliable Supports more accurate control restoration