This King Marine replacement cap and chain is designed to fit standard 1 1/2″ deck fill and vent fittings, making it a simple and reliable solution for boat owners needing to replace a worn or missing cap. Built from corrosion-resistant materials to withstand the marine environment, this cap includes an attached chain to help prevent loss during use. It’s an easy, direct-fit replacement for most OEM deck fill bases, keeping your fill fittings secure and functional.
