One-way water valve for RV motorhome with built-in filter G1/2inch1、Durable stainless steel filter: The built-in stainless steel filter ensures that your RV's water supply remains clean and free of debris, providing you with safe and clean water for all your needs. 2、Easy installation: The RV City Water Inlet with Check Valve is designed for easy installation, making it a hassle-free addition to your RV, motorhome, or camper. 3、One-way water valve: The one-way water valve prevents backflow, ensuring that your water supply remains uncontaminated and safe to use. 4、Thread diameter 19mm G1/2inch: This water inlet is compatible with most RVs, motorhomes, and campers, making it a versatile and convenient choice for all types of vehicles. 5、Reliable and long-lasting: With its premium-quality construction and materials, this RV City Water Inlet with Check Valve is built to last, providing you with reliable performance for years to come.