Flush mount, lost wax cast, 316 grade stainless steel deck fillers. Unique flip-up key ensures ease of removal at all times. Features coarse thread, ‘O’ ring seal, retaining chain and filler type identification moulded into the lid. Type: Fuel Hose Size: 2″ (50mm) Flange: 81mm Protrusion: 4mm Intrusion: 95mm No. of Mount Screws: 4