Marshall Excelsior ME413P Camping Propane Tee Adapter Marshall Excelsior Propane Adapter Tee Model ME413 The ME413 has a soft nose POL inlet connection with handwheel which fits all standard LP gas cylinder valves The outlets of the ME413 are both 1 Inch 20 male fittings with valve O-ring seal and brass safety caps The ME413 tee permits two appliances to be operated from a single fuel source POL x 1 Inch 20 Male x 1 Inch 20 Male