The 3" FNPT Double-Tap Lead-Free Brass Check Valve from STRATAFLO PRODUCTS is a robust solution for backflow prevention in plumbing systems. Constructed from lead-free brass, this valve ensures compliance with safety regulations. It features a Buna-S rubber poppet for reliable sealing and performance. The double-tap design allows for easy installation and maintenance, making it suitable for various applications, including water supply and drainage systems. With a 3" female NPT connection, this check valve is designed for high flow rates and durability, ensuring long-lasting operation.