Newly designed regulator and perfect to fit the new tank plus 6ft hose Diameter outlet 5/8"-18Unf. All the installation must be done by the certified person supervise the leaking of gas all the time, if smell the gas, and shut off all the switch and call the certified person. Turn off the main switch on the gas tank after each time using, make sure no gas left in the stove. Specially designed for USA connection!!!