This tubing meets the standards for FDA, has a length of 500 feet, a maximum operating pressure of 125 psi @ 75 Degrees F and is designed for the following applications: air, lubricant, water. It is yellow, has an operating temperature of -50 Degrees F to 140 Degrees F, is made of LLDPE. In addition, it has ½ inch outside diameter, ⅜ inch inside diameter, with an inch system of measurement, with 0.062 inch wall thickness, and Shore A 98 hardness. This tubing is for use with gas.