This hose adapter is designed for efficient and trouble-free filling of the water tank on your boat, especially suitable for sailing boats. The adapter provides a secure and tight connection to the filling spout with its unique quarter-turn mechanism and two locking holes, eliminating the need for threads and ensuring a quick connection. Made of robust PETG, or other rigid materials such as PLA, ASA or ABS, the adapter is built to withstand the maritime conditions and provide long-lasting use. It is developed to fit precisely to standard filling inlets, making the process of filling the water tank simple and convenient, so you can spend more time enjoying sailing.