The 4 X 4 X 1-1/2 3M THD RED TEE from Capitol Manufacturing is a robust plumbing fitting designed for efficient fluid distribution. This tee features a 4-inch diameter with a 1-1/2-inch branch, allowing for seamless connections in various piping configurations. The 3M threaded ends ensure a secure fit with standard NPT threads, facilitating easy installation. Made from high-quality materials, this fitting is built to withstand pressure and is compliant with industry standards, making it suitable for both residential and commercial applications.