The Large Wall Fitting with Threaded OD (Fits 1-1/2'' Pipe) with Lock and Gasket for Fiberglass/Vinyl (Model # ES1022Vxx) is a versatile and durable product designed for fiberglass and vinyl pool installations. This fitting is a standard 1022 that fits outside 1½" pipe and threads inside 2" pipe, making it easy to install and connect to other plumbing components. The 1½" FPT in the front face allows for easy connection to other plumbing components. The large flange of this fitting camouflages pipe and surface construction variations, providing a sleek and finished look. Additionally, this fitting comes with a lock and gasket which ensures a secure and tight seal.