Features 1. Wide Application: Gravity water fill inlet with auto hatch design, suitable for RV, motorhome, camper, trailer, and caravan. 2. Durable Material: Constructed from high-quality food-grade PP stabilized plastic for reliable and long-lasting performance. 3. Faster Filling: Equipped with a 10mm air vent and a 40mm connection bar for efficient water filling. 4. Leak-Proof Design: Spring-loaded mechanism and sealed ring provide effective leak protection and prevent loosening. 5. Secure Installation: Lockable water fill inlet includes 2 keys for safe and secure use. Specification Item Type: Water Fill Inlet Material: PP Color: White Opening Diameter: Approx. 78mm (3in) Applicable Wall Thickness: Approx. 30-40mm (1.18-1.58in) Application: RV, Motorhome, Camper, Trailer, Caravan Package List 1 x Water Fill Inlet 2 x Key 1 x Sealing Ring 4 x Fixing Screw