The Hayward flush union set is designed for compatible plumbing applications where a serviceable connection is needed between 1-1/2 inch slip and 2 inch spigot plumbing. A union like this is useful because it allows the connection to be disconnected for service later while still supporting a clean, stable installed fit.This quantity-two replacement set is especially useful when the original unions are cracked, leaking, worn, or missing. Replacing both together can help restore a more consistent plumbing layout and improve confidence in the connection between related components.The SP1500UNPAK2C pack is a practical replacement for compatible Hayward systems that need renewed union support and dependable serviceable plumbing performance. Hayward flush union set 1-1/2 inch slip x 2 inch spigot design Quantity 2 Useful when the original unions are damaged or leaking Supports cleaner and more dependable plumbing fitment