[Size]: 1/2inch and G1/2 threads, 2.95 inches in diameter, 3 inches in height, 0.75 inches (19mm) in diameter at the bottom of the water filler. Compact and , easy to carry and store, more convenient for . [Application]: Built-in one-way check valve, can replace the square water inlet hatch parts. Can be used in caravans and campers, installed in the car's decompression water inlet, one-way water valve, water inlet, to bring you great convenience. [Function]: The water inlet valve is mainly used for car fresh water system, which is perfect for outdoor use and prevents nasty contaminants from entering your RV fresh water pipes. Check valve can avoid backflow of water (Note: the angle of the flange must be screwed in correctly). [Installation]: RV fresh water inlet can fit tightly without drilling any holes. You just need to remove the screws, unscrew the existing flange, then thread the silicone band (not included) on the valve, and screw the water line flange to the fitting. [Material]: Metal filter, can the clean and safe water quality. High-quality water filling port, sturdy and , long service life. The shell is made of sturdy plastic, die-casting molding, no welding , high safety performance, to stamping without deformation. High strength plastic, hard and , and compact, very easy to store and carry. Built-in check valve to prevent water backflow, stainless steel filter to effectively remove foreign objects and clean and safe water. Widely used in fresh water systems for RVs and campers, perfect for outdoor activities. Color: White & Black Material: Plastic+Metal Package Contents: 1 * RV City Water Inlet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.