Flexzilla Premium Straight-On Tapered Chuck Inflator with 12 in. Hose (20-170 PSI) - AL2000FZ VERSATILE TIRE INFLATION - Straight-on chuck with 12 Inch hose makes it easy to both inflate your tires and read your tire pressure. The air chuck comes loaded with: brass internal parts and a 1/4 (inch) inlet thread EXTREMELY FLEXIBLE - All weather flexibility (-40 Degree to 150 Degree F Ambient) EXTREMELY DURABLE - Abrasion resistant outer cover and crush resistant aircraft aluminum fittings with bend restrictor, includes ColorConnex industrial plug & coupler WON'T KINK UNDER PRESSURE - Hybrid polymer coils easily and lays flat with zero memory GAUGE RANGE - 20-150 psi. At 70 F the max working pressure is 300 psi