The Flint & Walling Check Valve 1.0 with Spring is made from low lead brass, ensuring compliance with safety standards for drinking water systems. This valve is designed to prevent backflow, maintaining the integrity of your plumbing system. With a 1-inch connection size, it fits seamlessly into various applications, including residential and commercial plumbing. The spring mechanism allows for quick response and reliable operation, making it an essential component for any water system. Its durable construction ensures long-lasting performance and resistance to corrosion.