RV fresh water tanks need a safe external fill point that prevents contamination and backflow during hookup. This recessed-mount inlet accepts standard city water connections via female threaded ports and includes a built-in one-way check valve to prevent siphoning or tank back-drainage. A hinged dust lid with positive lock mechanism protects the port when not in use, blocking road dust, insects, and weather from entering the tank system. Molded ABS plastic construction suits outdoor mounting on RV sidewalls or rear compartments. The compact 3.5-inch square format fits most cabinetry openings without major modifications.

• City water female inlet connection
• Built-in check valve prevents backflow
• Locking hinged dust cover included
• Recessed mount, 3.5″ W × 3.5″ H, ABS plastic