The Pentair 542411 fiberglass long body wall fitting is designed for compatible wall-fitting applications using a 1-1/2 inch slip by 1-1/2 inch FPT connection in a white finish. A wall fitting like this is useful because it creates the plumbing transition through the vessel wall and supports proper connection between interior and exterior plumbing components.Replacement is often needed when the original fitting is cracked, damaged, leaking, or no longer suited to the wall thickness or service condition of the installation. Installing the correct Pentair wall fitting can help restore a cleaner plumbing connection and a more dependable final fit.This long body wall fitting is a practical replacement for compatible fiberglass pool or spa applications where correct wall penetration hardware matters. OEM Pentair long body wall fitting 1-1/2 inch slip by 1-1/2 inch FPT connection White finish Designed for compatible fiberglass wall-fitting applications Supports cleaner and more dependable through-wall plumbing connection