Marshall Excelsior 1-5/16"Female ACME x 1/4"MNPT LP Hose Connector w/ Shut Off ME518 06-0233

The Type I (QCC) connectors are designed with a built-in excess flow feature & a positive shutoff that will not allow gas to flow until the connector is fully engaged. In case of a fire the built-in thermal protection on the QCC connector melts allowing the nipple to disengage from the tank connection & stop the flow of propane.