Item Name: Accessories Boat Trailer RV City Check Valve Gravity One-way Water Fill Inlet. Material: PlasticCutout diameter: Approx. 75 mm/ 2.95 inchLength: Approx. 76.5 mm/ 3 inchSpecification:Color: WhiteDescription:Water Inlet is used for RV fresh water system and it is constructed with UV stabilized plastic.There are a check valve inside and 19mm water inlet.1/2" BSP and G1/2 thread.Stainless steel filter constructed with plastic. Package Includes:1 Piece Water Inlet *Please make