The 4" FNPT Single-Tap Brass Check Valve from Strataflo Products is designed for reliable flow control in various applications. Constructed from durable brass, this valve features a Buna-S rubber poppet for optimal sealing and longevity. With a 4-inch female NPT connection, it ensures compatibility with standard piping systems. Ideal for both residential and commercial use, this check valve prevents backflow, maintaining system integrity. Its robust design meets industry standards, making it a dependable choice for fluid management.