Replacement Cap for gas, diesel and water hose deck fills. For 1-14 straight pipe threads. Highly polished finish. Flush cap is slotted for separate key and features an O-ring that seals the cap watertight. Cap is attached by a stainless steel beaded chain. Key sold separately. For Attwood 66406,66407,66408,66126,66171,66172,66173 Note Requires a bonding wire to prevent sparking when nozzle is inserted on gas model. California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov O