Gas tank sprinkler replacement, suitable for most 1/2/5/10 gallon tanks, we offer 6 threaded shoe collar caps, 3 coarse threads and 3 fine threads. The internal thread size is 1-3/4 to 1.7 inches (approximately 4.4 to 4.3 cm) and can only be used for gas tanks with a tank mouth size of 1.7 inches (approximately 4.4 cm). Please measure the size of your fuel tank before purchasing. High-quality material gas nozzle replacement parts are made of high-quality plastic material, which can be bent freely without breaking during use. The thickened and widened rubber gasket can better fit the bottle cap and prevent liquid leakage when refueling. Splash-proof (special attention: the screw cap of the gas bottle is hexagonal), the nozzle tube and nozzle cover are threaded, and there is a rubber sealing ring inside the nozzle cover. Tighten the nozzle cap after use. There is also no spillage during transportation or when the tank is dropped. More tanks can be covered, we provide two tanks with vent