Lever-type. Conforms to all OSHA (Occupational Safety and Health Organization) requirements including noise level regulations. Features a vented nozzle to relieve the compressed air should the nozzle become plugged or accidentally obstructed. Tamper proof pressure reducer limits nozzle pressure to 30 psi (pounds per square inch) or less with a maximum inlet pressure of 150 psi. Heavy-duty die-cast body with hang-up hook. 1/4" Female NPT (National Pipe Thread) . 1 per card.