Grip-Tite Chuck Product Type Heavy-Duty Tire Chucks Chuck Type Straight Lock-On Includes Quick Connect Operation Maximum Operating Air Pressure 300 psi Head Style Single Number of Tire Inflators 1 Pressure Increments Not Applicable Thread Size 1/4 in Hose Length Not Applicable Thread Standard FNPT Material Steel Minimum Operating Air Pressure 1 psi Features Snaps on to Standard Tire Valve Straight-On Air Line Chuck Application Inflating Tires Color Steel Gauge Type No Gauge