[Premium Quality]: Gas can nozzle kit are made of UPGRADE plastic that not easy to crack,thicker and widened rubber gaskets Thicker and widened rubber gaskets, Can better fit the bottle cap, Prevent liquid leakage when refueling. [Leakproof]: With this replacement nozzle to pour the liquid, you will never spill gas all over yourself and your equipment again. [Time-saving]: Push in vent cap for faster and emptying, filter/flame arrestor prevent any serious damage for smoother and cleaner pouring. Can cover more oil cans: We offer two types of gas can vent caps, (gas can vent caps-A) is used for oil cans without a vent at of the , You only need simple drilling and installation to use. [gas can vent caps-B]is used for another with a vent cap at the tail, Can replace old vent caps [Anti-Overflow Design]As shown in the figure, The spout tube and the spout cap are threaded, and the spout cap has a rubber sealing gasket inside. When you have finished using it, tighten the oil outlet cap.