The 1-1/2X1 PVC SWJT RSR W/18 NPL MPT from Spears MFG is a versatile fitting designed for efficient plumbing connections. This fitting features a 1-1/2 inch to 1 inch size transition, making it ideal for various applications. Constructed from durable PVC, it offers excellent resistance to chemicals and UV exposure. The socket weld joint provides a secure connection, while the 18 NPL MPT ensures compatibility with standard male pipe threads. This product meets industry standards, making it a reliable choice for both residential and commercial plumbing projects.