Features: brand new high quality Made of high-quality materials, durable and practical Fits all sizes of plastic air tanks 2.5 5 10 20 gallons 10L 5L, the factory is just right, the air tank seal is slightly elongated and can fit most nozzles on most brands of tanks A new replacement for high-quality fluororubber, the quality surpasses that of old rubber. The gasket is slightly stretched for canned brands: Wedco, Bri ggs and Stra tton, Gott, Rubbermaid Essence, Scepter, Ameri-Can, Midwest, Igloo, StanCan, Kolpin and RotopaX, but please check all pictures and dimensions carefully. Not all gas parts are interchangeable between brands. Please ask any questions before buying to ensure you get the right part the first time. Product parameters: Type: Gas tank spout Outside Diameter (Approx.): 1-1/2" - Slightly stretched when applied to gas nozzles Opening (approx.): 1-1/4" Thickness: 3/16" with groove/U-seal in the middle to keep at the bottom of the vent ridge Material: Rubber Color: Black (as pictured) Quantity: 6 Package Included: 6 * Gas tank gasket Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.