This air hose meets the standards for RMA Class A, has a length of 50 feet, a maximum operating pressure of 300 psi @ 70 Degrees F and is yellow, has an operating temperature of -20 Degrees to 190 Degrees F and is made of nitrile. In addition, it has 9/16 inch outside diameter and ¼ inch inside diameter. This air hose is for use on air, calcium chloride, carbon dioxide, ethanol, ethylene glycol, formaldehyde, glycerin, heptane, hexane, isopropanol, and more.