Screw-on Filler Cap with Chain

This screw-on filler cap with chain is designed for watercraft and recreational vehicles. It provides a secure seal for utility inlets. The cap features a ball chain attachment to prevent loss during refills. It is crafted from nylon without fiber reinforcement, offering a hard, solid construction. The design includes a round mounting flange and a cylindrical threaded neck for a flush fit. It is easy to install and protects internal systems from dust, water, and debris.