Perfect size for small oxygen tanks, at approximately 4.5" compared to the 6" of typical regulators * Made with an aluminum body and all brass core, this regulator is durable and safe for any user * Portable and safe at 4.5" and made of aluminum and brass * Comes with viton yoke seal with outer ring constructed of brass * Includes CGA-870 inlet connector and hose barb * Easy to read dial in-flow settings with ribbed flow selector to give users an easier grip * Flow rate: 0-15 LPM; includes settings of 1/8, 1/2, 1, 2, 3, 4, 6, 8, 10, and 15 * Limited two-year warranty *