This multi functional water connection component is designed for RVs and trailers, providing a single versatile solution for your water needs. It combines an RV water hose connector, a check valve water tank port, an RV water fill inlet, and an inlet with a check valve in one unit. Key benefits - Multi-functional design: Use it as an RV water hose connector, a check valve water tank port, an RV water fill inlet, or an inlet with a check valve. This single unit covers multiple water connection needs, reducing the number of fittings you carry. - Backflow protection: Integrated check valve on the inlet helps prevent backflow and leaks, improving system reliability and safeguarding your water supply. - Easy installation: Quick and straightforward to install, with immediate usability after mounting. Designed to work with typical water hose flanges and trailer fill applications. - Convenient operation: Rotating cover water port design allows easy access for filling and secure, tidy when closed. Simplifies connecting and disconnecting water lines. - Practical and presentable: Clean, unobtrusive appearance that suits RV and trailer exterior setups while delivering dependable performance. Specifications and compatibility - Inlet with Check Valve: Provides backflow protection for onboard water systems. - RV Water Hose Connector: Compatible with standard RV hose connections for simple hookup. - Water Fill Inlet: Allows convenient access for refilling the onboard water supply. - Water Hose Flange and Trailer Water Fill Inlet compatibility: Designed to work with common hose flange fittings and trailer fill configurations. Use scenarios - Campground fresh water fill: Connect the external water source to the RV water hose connector, use the water fill inlet to top up the onboard freshwater tank, and rely on the check valve to prevent backflow. - RV external hookup: When parked, use the connector to supply water to the RV system; the rotating cover provides easy access and secure closure when not in use. - Trailer fill operation: Attach to a trailer fill inlet, using the built in check valve to prevent leaks and backflow during the filling process. Notes - Ensure proper installation according to the RV and trailer water systems guidelines. - Use compatible hoses and fittings as appropriate for your setup.