Sturdy Material: This caravan gravity filler is made of high quality ABS material, sturdy and durable, wear-resistant and not easily deformed, strong and rust-proof, can be used for a long time, with spring and sealing ring, leak-proof and anti-loosening. Universal Dimensions: Caravan water inlet with cover at quick lock, 110*112mm dimensions, 38mm air hole to speed up the filling speed, 80mm stable connection, convenient for the water in the tank not to overflow. Suitable for the fresh water intake of most caravans, campers and boats. Prevent Leaks: The RV tank cover is equipped with springs and seals, seals prevent leakage, dust and water leakage, as well as a curved leak-proof and solution-proof design, and the reverse vent design of the air holes will not cause water accumulation when you fill the tank with water. Easy to Use: The gravity fill cap is gravity-fed and comes with a lid, vents for faster filling and a sturdy connection with a large diameter for faster filling, the inlet is designed with a curved industrial texture and a single-piece inlet. 45 degrees for easier water intake. Package Includes: The product includes a gravity water intake and 2 keys. The plastic caravan water inlet is a practical fresh water connection for caravans, filter trailers and boats. It can be used for caravans, motorhomes, boats, trailers and more!