Marshall Excelsior MER472 Stay-Longer Propane Kit Designed to give you new flexibility on how you use your LP-Gas You can stay longer by hooking up auxiliary LP-Gas cylinders, or you can tap into the RVs LP-Gas system to fuel portable high-pressure appliances Includes: Brass tee connection (ME420) .9 GPM excess flow male hard nose POL x female POL x 1-20 male x 1/4 female inverted flare 5' hose (MER401-60) .9 GPM excess flow male POL x 1/4 male inverted flare