This fitting has a 1½" FIP, making it easy to connect to other plumbing components. The unique feature of this fitting is that it allows for liner replacement by removing the faceplate during installation. This makes it an ideal solution for pool builders and remodelers who want to save time and effort during the installation process. The fitting can be used for return or suction with the appropriate eyeball or grate fitting, making it a versatile solution for different pool designs. It includes gasket, nut and stainless steel screws, providing a comprehensive solution for vinyl pool installations. However, the eyeball is not included in the package.