m7500 rapidair maxline 3/4" compressed air tubing commercial / shop piping kit  maxline is an industrial compressed air piping system that installs in half the time of traditional methods. it is a semi flexible tubing that comes in a 100 ft or 300 ft coil and uses compression fittings for leak proof performance. it delivers clean compressed air, inert gas and vacuum. maxline flexible tubing is made of several layers: the inner and outer layer are hdpe and the center layer is aluminum. its smooth inner surface delivers air efficiently and remains corrosion free for decades. it will maintain its shape after bending, which makes it ideal for layouts with many obstructions and corners. maxline piping is designed for efficient installation in diverse settings, from small shops and farms to large manufacturing facilities