[40.0 Inches]

Typically used for Octos for Scuba Diving. They are suitable for using with all breathing gases including air, nitrox, trimix and oxygen. Length is measured from end to end of the hose, including the fittings and their threads. The typical low pressure regulator hose is a 3/8-inch male at the end that screws into the first stage LP port, and at the other end youll find a 9/16-inch female that screws onto the second stage regulator body.