100% brand new and high quality Features:1. Air to confirm the flat expansion tankCheck valve in the closed position2. The liquid gas interface of the inflation valve connected to the gas cylinder, unscrew the gas cylinder, check the interface to ensure safety3. Bottles of liquefied gas upside down4. Empty flat tank connected to the flat gas connection valves, open the knob of the gas cylinder, then you will see the flow of liquefied liquid gas in the pipes5. Flat tank to connect a good inflation valve on electronic scales, generally not peeled, because sometimes the flat tank can remain, and then, if peeled, can charge the installed excessive inflation process in real time observation of the number filled, it is recommended to charge slightly less than the original tank of the original tank6. The charged inflation valve of the gas pipeline will remain liquefied liquefied liquid gas, then just the inflatable valve received flat tank, liquefied liquid gas cylinder gas valve closed, open flat cans inflatable valve, stuck inside the pipes liquefied liquid gas will flow automatically into the flat tank, inflation valve liquefied liquefied liquid gas residueSpecifications:Material: PU + metal high pressure pipe Size: 43.5*5cm/17.13''*1.97''Color: as the picture as the pictureQuantity: 1pcNote: 1. Transition: 1cm=10mm=0.39inch2. Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before