Caravan Water Fill Cap With Gravity Lock Water Tank Filler Port Lock Inlet Hatch Filler Cap Set Suitable For Motorhome Camper Features Gravity Water Inlet Fill Dish Hatch Lock - Gravity fresh water fill hatch inlet filter lockable for RV, boat, and trailer. Lockable gravity water inlet filler neck for caravan, RV, and boat. RV plastic inlet with filter for fresh water systems. Cover Design - The cover features an industrial curved texture and 45-degree water inlet design for easier water entry. Includes a seal ring to prevent leakage, dust, and water ingress. Lockable gravity water inlet cap compatible with most fresh water inlets on RVs, motorhomes, caravans, and boats. Reverse Vent Design - The reverse vent design prevents water backflow during filling. Made from environmentally friendly materials resistant to aging, with good toughness and high durability. Water Inlet by Gravity and Fresh Water Filling Hatch with Lock - Gravity-fed design for convenient water filling. Suitable for motorhomes, caravans, and trailers. Compatible with various models including RVs and trailers. Specifications Package Include: 1 pc Water Fill Cap Note: Due to variations in measurement methods, there may be a 2–4 cm size deviation. Please note the product dimensions to ensure compatibility.