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