Male Trinary Safety Switch – 3/8-24 Thread with O-Ring

This male-thread trinary safety switch features a 3/8-24 thread and integrated O-ring seal for a secure, leak-free connection. Designed to provide both high/low pressure protection and electric fan control, it helps maintain safe and efficient A/C system operation.

Compatible with Vintage Air and other O-ring style refrigerant systems using 3/8-24 threaded service ports.