Marshall Excelsior ME412P Acme Tee for Two Camp Fitting Marshall Excelsior Propane Adapter Tee Model ME412P The ME412P camping appliance tee allows the RV owner the ability to connect either one or two high pressure LP gas appliances from a single LP gas cylinder source The Marshall Excelsior ME412P features two male 1 Inch 20 high pressure propane connection ports for powering portable camping appliances such as: camp stoves, lanterns, table top grills, portable heaters, and other small LP appliances Tee adapter, QCC1 x Male 1 Inch 20 x Male 1 Inch 20