Ortac® (Oil-Resistant Tube and Cover) is our most popular premium-quality multipurpose hose . Used in the most abusive industrial applications, Ortac® will handle air, oil, water, kerosene and some chemicals. The premium Carbryn™ cover offers the most superior abrasion resistance of air and multipurpose hoses. Non-conductive, minimum electrical resistance greater than 1 megohm per inch of hose length at 1000 volts DC . Available in 250, 300 and 400 psi working pressures. Note: Ortac® 400 Yellow is USMSHA approved.