Interstate Pneumatics TF3146 Medium Duty Inflator 10-90 PSI With 12 Inch Rubber Hose Whipend and Straight-In Tapered Chuck Chrome plated metal casting | Precision machined brass internal parts Buna-N (Nitrile) O-rings | Indicates 10-90 PSI in 2 PSI increments 1/4 inch NPT Female Inlet Threads | Red Rubber Hose Length: 12 inch | Abrasion and corrosion resistant | Straight-In Tapered Chuck (T46) Maximum Operating Pressure: 175 PSI | No internal shut off valve