The 4" POLY NPT NIPPLE from SEALFAST is a robust and reliable fitting designed for fluid transfer applications. Constructed from high-quality poly material, this nipple offers excellent chemical resistance and durability. With a 4-inch diameter and NPT threading, it ensures a secure and leak-free connection in various plumbing and industrial systems. This product is compliant with industry standards, making it suitable for both commercial and residential use. Ideal for connecting pipes in a variety of applications, it provides a long-lasting solution for your plumbing needs.