Amflo 201 Standard Series Blow Guns. 1/4" NPTF inlet and 1/8" NPTF outlet. Rugged construction with hang hook. Accepts a full range of accessories. 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. Important: No Safety Bypass - To comply with OSHA regulations Standard Blowguns must be used on a regulated air line with a pressure setting not to exceed 30 PSI.