The 600 Series Blowguns are a thumb-lever style blowgun with an ergonomic shape, and accept all Coilhose 1/8" tips. User comfort was designed into the 600 Series with the elimination of the value where the user's fingers are placed. Models that are designated as safety" conform to OSHA standards for noise levels (1910.95) and 30 psi dead-end pressure (1910.242B). FEATURES: Plated Finish Provides Easy Cleaning. Tough Die Cast Zinc Bodies. Ergonomic Shape. Accepts Standard 1/8" Blowgun Tips. Maximum Inlet Pressure: 150 psi. 1/4" npt Inlet.