Description: Heavy duty cast stainless steel material, surface polishing Overall length: 72mm/2.8 inch; Center circle diameter: 23mm/0.9 inch; Excircle diamete: 45mm/1.8 inch Fits for 3/4" inside diameter hose Complete with mounting gasket and stainless steel mesh spark arrestor Flush mount design to prevent damage from docks, lines or fenders Suitable for marine, caravan, truck, automotive applications Package Includes: 1 Piece Fuel Tank Vent