Enhance your RV or trailer's plumbing system with this durable water valve kit from KeLyncy. Designed for Dometic series 300, 310, and 320 toilet models, this valve is a perfect replacement for the Sealand Dometic #385311641. The kit includes a valve, collar, and screws for easy installation using simple tools. This water valve is made of high-quality plastic, ensuring long-lasting performance and resistance to damage. Its 3-inch inlet and 3/4-inch outlet connections are compatible with most standard RV plumbing systems. With its user-friendly design, this valve is easy to install, remove, and maintain. This kit contains all necessary parts for optimal valve operation. Experience the convenience and durability of this KeLyncy water valve kit, measuring 7 cm in width, 12 cm in length, and 3 cm in height, and enhance your RV or trailer's plumbing system today.