HIGH QUALITY MATERIAL: Made of PVC material, safe and environmentally friendly, thickened material, not deformed when bent, copper head valve is corrosion resistant and wear resistant , strong and durable.If the pipe is too difficultto unfold, it can be used after soaking in hot water SPECIFICATIONS: Ssiphon pump hose fits most fuel tank ports, hose length: 1.8m, diameter: 18mm, thickness: 2mm. The copper valve length is 60mm. Caliber: 21 mm. EASY TO USE: Simply insert the copper valve into the siphon container, shake it up and down and the liquid will start to flow. Make sure the level of the siphoning end (where it siphons from) should be higher thanthe other end (from where it siphons) of the tube. SIPHON HOSE: The pump Ssiphon hose has a built-in inlet and outlet valve, which is firmly connected, has high airtightness, does not leak oil, and can prevent backflow. APPLICATION: Suitable for gasoline, diesel, gasoline water and other common liquids, also can be used as a home aquarium water changer.If the hose is too difficult to unfold, it can be used after soakingin hot water Steps of use 1: Insert the pipe into the container to be filled. 2: Insert the copper siphon nozzle into the container with liquid. 3: Shake the hose up and down quickly in a pounding motion until the liquid begins to drain completely. 4: When the fuel tank is full, immediately remove the siphon nozzle from the gas tank to stop fuel transfer. Specifications Material: PVC Size: Hose length is 1.8m Diameter: 18mm Notes - Do not use in salt water or other chemicals corrosive to copper. - Drain all fluid from the hose and clean it thoroughly when not in use. - Store it in cool, dry places. Package 1 x siphon pipe