- New
27839 by Aqua Pro is a white plastic male-threaded plug with an attached strap, designed to help keep dirt and debris out of compatible fresh-water hoses and regulators. It fits standard 3/4-inch male garden-hose threads and is suitable for many RV water-fill connections with brass garden-hose fittings. The attached strap helps keep the plug connected to the hose when not in use, reducing the chance of losing it. Easy to install and supplied individually, it is a practical accessory for maintaining clean water connections.