Amflo 201D Standard Series Rubber Tipped Blow Gun. Provides leak proof seal for blowing out lines. Rubber tip is excellent for body shops as it will not mar painted surfaces. Blow gun does not have a safety bypass to prevent tip pressure buildup in the event of blockage. Complies with the requirements of OSHA 1910.242b when used on a regulated line of 30 PSI or less. Use male threaded pulg (1/4" NPT). Make sure plug is securely tightened to blow gun.