Review on Dorman 800-191 5/16-inch Fuel Line Connector, Pack of 2 for Improved SEO by Julius Hunter

My husband used this connector to repair a small animal damaged 5/16 inch nylon plastic fuel line on our pickup truck. He worked great. It is not necessary to heat the ends of the leads to install this connector. BUT, as mentioned in another review, it's important to flatten the ends of the fuel lines before inserting them into this connector...and hearing the click. Also note that the blue rings on the connector must be OFF (home position); Pushing INSIDE releases the line connection.