The OTC Fuel Tank Leak Check Adapter, No. 6782, is a gas tank and gas cap adapter for diagnosing tanks with 1/4 turn type fuel filler caps. It's designed to be used with an EVAP system tester and includes a male tank adapter and a female cap adapter connected by a 20" hose. Applications include 2006 to later Chrysler, Dodge, and Jeep vehicles, as well as 1999-2003 Mitsubishi Gallant and 2001-2005 Mitsubishi Eclipse Spyder vehicles.