Features： 1、Anti UV Material: Made from high hardness ABS and UV resistant material, the RV water filler cap is designed to withstand harsh weather conditions. 2、Secure Lock: Equipped with a lock, cylinder, and keys made from stainless steel, this cap provides exceptional durability and security, preventing your water supply from interference. 3、Excellent Seal: The included sealing ring ensures a complete seal, preventing water leakage and ensuring a secure fit for efficient water filling and storage. 4、Ideal Replacement: Whether you've lost or damaged your current cap, this filler cap is an excellent replacement. The original lid must be the same shape as this lid, otherwise it is not compatible. 5、Complete Set: Includes one filler cap and two keys, ensuring you always have a spare key on hand. The complete set offers everything you need to secure your RV's water supply. Specification： Item Type:?RV?Water?Inlet?Cap ? Material: ABS+ UV resistant material + rubber Application: Replace lost or damaged tank lids (please ensure that your original tank lid is the same shape as this tank lid, otherwise it is not compatible) Package List： 1 x?RV?Water?Inlet?Cap?? 2 x Keys