Amflo 100 Straight-On Tapered Chuck Tire Inflator Gauge with 12" Hose. Heavy chrome plated castings with protective sleeve over dial tube. Plated steel handle is riveted to body. Solid brass bar is calibrated 10 to 120 PSI in 2 PSI increments. Use only oil free and water free compressed air. Maximum pressure of air source should not exceed 220 psi. Do not use for inflating or checking pressure on air/liquid tires or other tires containing corrosive materials.