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The Flow-Longer Propane Kits are designed to connect small, portable appliances, normally fueled by disposable LP-Gas cylinders, to the existing LP-Gas fuel supply of a recreational vehicle, cottage, backyard patio, etc. without interrupting the supply of regulated fuel to the system. Flow-Longer eliminates the need to purchase an extra LP-Gas cylinder or several small, disposable type cylinders. MER470 includes Brass tee connection (ME415) .9 GPM excess flow male hard nose POL x female POL x 1"-20 male and 12' foot hose (MER421-144) 1"-20 male x 1"-20 female