The Gravity Water Inlet Fill Hatch for RV, Camper Van & Caravan Fresh Water Tanks is an essential component for filling your storage tanks with ease. This sturdy and reliable unit features a Lockable ABS Bayonet Cap, ensuring a tight seal and preventing leaks. The 10mm Air Vent allows steam to escape, preventing the cap from becoming hot and ensuring safe and easy installation. The 40mm Barn Connection is designed to fit seamlessly into the tank's faucet or hose outlet, reducing waste and improving efficiency. Made of high-quality, durable ABS plastic, this hatch is built to last and withstand the rigors of RV and camper life. Experience the convenience and peace of mind that comes with this gravity water inlet fill hatch for RV, camper van, and caravan fresh water tanks.