The 247Garden PVC True Union Ball Check Valve Socket-Type ASTM D2466/F1970 is a reliable one-way pro-flow control fitting designed to keep your plumbing or irrigation system running smoothly by allowing water to flow in only one direction while preventing unwanted backflow. Built with durable PVC construction, this valve is easy to install and service thanks to its true union design, which allows for quick removal and maintenance without cutting pipes. You need this valve because it protects pumps, filters, and other equipment from reverse flow damage, helps maintain water pressure consistency, and ensures a cleaner, safer system overall. Perfect for residential, commercial, and agricultural applications, this check valve is a cost-effective solution for long-lasting performance.