Unique swivel end allows tool into tight areas without the struggle. Extreme all weather flexibility, even in sub zero temperatures! (-40 to 150 F). Excellent abrasion-resistant outer cover. Flexzilla Hi-Vis color makes hose more visible in workplace. Kink resistant under pressure Flexzilla Air Hose offer superior flexibility for tight radius bends in both cold and warm environments. Engineered polymer-blend material permits use in environments where general purpose PVC and rubber hoses may become stiff. 3/8 NPT. Maximum working pressure: 300 PSI.