RV City Water Fill Inlet with Built‑in Check Valve, Backflow Prevention, Easy Install for Camper Trailer, White

This RV city water fill inlet with built in check valve provides a secure, fast connection for adding city or fresh water while preventing backflow after the supply is stopped. It is designed for straightforward installation and broad hose compatibility. Key benefits Prevents backflow after water supply stops thanks to the built in water stop valve, protecting tanks and plumbing. Provides a sealed, fast water supply with a standard hose connector for reliable filling. Easy to install and in RVs, campers, converted vehicles, tool trucks, yachts, and other applications where stable pressure and fast fill are required. Main features Water opening diameter: 90 mm. Hose connector diameter: 20.2 mm, compatible with most market hoses. Mounting screw hole spacing: 85 mm. Mounting screw hole diameter: 5 mm. Compact external size: 11.7 cm x 11.7 cm x 7.5 cm (4.61 in x 4.61 in x 2.95 in). What is included 1 RV city water fill inlet with built in check valve 1 quick connector Installation overview Select a location with access to the water system. Drill a 90 mm diameter round hole in the wall. Align the inlet, secure using screws through the 85 mm spaced mounting holes with 5 mm fasteners, and attach the hose using the 20.2 mm connector. Practical use scenarios At a campground hookup, connect a standard hose to quickly fill fresh water tanks while the built in valve prevents backflow when the hose is removed. On a yacht dockside, use the inlet to supply city water directly to onboard plumbing without risking contamination of onboard tanks. For a converted van or tool truck, install the inlet to allow rapid up of the freshwater system from municipal or fill stations. Compatibility and notes Connector diameter 20.2 mm fits most standard hoses and quick connectors. Designed for use where a secure city or fresh water fill with backflow prevention is required. Please allow slight measurement variation due to manual measurement and different monitors. This inlet offers a practical, reliable solution for adding water to mobile and marine systems while minimizing risk of backflow and simplifying hookup.