Big Horn 4 in. Tee a practical solution for adding branches to your system, allowing you to service each machine in your shop efficiently. This T-fitting is especially useful when space or design constraints make the use of Y fittings impractical. Designed with a 4-inch outer diameter, it ensures a secure and reliable connection in your setup. I for maintaining a streamlined and functional workspace, this tee fitting helps optimize your system’s layout without compromising performance. Model Number: