The T&S Brass 016419-25 is a 3/8" compression check valve assembly designed for reliable performance in various plumbing applications. This assembly features a female x male connection for easy installation and compatibility with standard fittings. It includes a 10mm check valve and a filter washer to ensure optimal flow and prevent backflow. Constructed with low lead content, this product meets NSF standards for safety and quality, making it a dependable choice for both commercial and residential use.