The Hayward inlet fitting is designed for compatible pool return applications where a 3 inch hole-size fitting is needed in a 1-1/2 inch FPT by 1-1/2 inch FPT configuration. A fitting like this is useful because it helps establish the wall-return connection while supporting dependable plumbing fit and cleaner water return into the pool.This replacement is especially useful when the original fitting is leaking, cracked, damaged, or no longer fitting securely. Replacing it with the proper configuration can help restore the return point and improve confidence in the plumbing connection.The SP1411 is a practical replacement for compatible Hayward pool systems that need renewed inlet support and cleaner wall-fitting performance. Hayward inlet fitting 3 inch hole size, 1-1/2 inch FPT x 1-1/2 inch FPT Designed for compatible wall-return plumbing applications Useful when the original fitting is damaged or leaking Supports cleaner and more dependable return performance