Marshall Excelsior MER472 - Stay-Longer Propane Adapter KitThe Stay Longer Propane Kits are 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. Kit 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 and 5' hose (MER401 60) . 9 GPM excess flow male POL x 1 4 male inverted