*Push-to-connect pneumatic fittings allow you to quickly attach and detach hoses for a variety of pneumatic purposes.
*To connect a hose, manually insert the hose into the fitting until it is snug. To release the hose, the outer rim of the fitting must be pushed inward, which unlocks the hose for quick detachment.
*After connecting the pipe joint and the trachea, the trachea must be connected to check whether the trachea can be pulled, and can not be put into use unless it can be pulled.
