Air Chuck Product Type Heavy-Duty Tire Chucks Chuck Type Straight Lock-On Includes Lock on Head Maximum Operating Air Pressure 300 psi Head Style Single Number of Tire Inflators Not Applicable Pressure Increments Not Applicable Thread Size 1/4 in Hose Length 2 in Thread Standard NPT Material Brass Steel Minimum Operating Air Pressure 0 psi Features Easy Lock Standards Not Applicable Application Inflating and Checking Pressure Finish Zinc Plated Gauge Type No Gauge