[Gas Tank Nozzle Replacement]Suitable for most 1/2/5/10 gallon oil tanks. As shown in the picture, the internal thread size is 1-3/4--1.7 inches and can only be used with jar mouth sizes of 1.75 inches. Please measure your tank opening size before purchasing. [Anti-spill Design]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 will be no oil spillage even when transporting or the tank slides down. [PERFECT VALUE KIT]All the tools you need to handle your gas tank. It comes with 5 yellow nozzles, 10 screw ring caps (5 coarse thread and 5 fine thread), 5 nozzle caps, 5 nozzle cap gaskets, 5 tank vent cap gaskets - B, 10 1 vent cap to fit most oil tanks and 1 appropriately sized drill bit. [Fits More Tanks]We provide two types of gas tank vent caps, (Gas Tank Vent Cap-A) for tanks without vents at of the tank, you only need simple drilling and installation use. (Gas tank exhaust cap-B) is used for another oil tank, with a vent cover at the rear, which can replace the old exhaust cap. Colour:Yellow Material:PE Package Contents: 1 set x replacement gas tank nozzles Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.