W Cooper O-Ring [Union] (6573) is a W. Cooper Industries replacement union O-ring for compatible pool and spa equipment connections. Union O-rings help create a watertight seal between removable plumbing components, making them important for service points that are opened for maintenance or repair. This part is a useful replacement when the existing seal is compressed, cracked, stretched, or causing seepage at the union. Replacing a worn O-ring is often a simple way to improve the seal without replacing the full union assembly. Clean the mating surfaces before installation and inspect the union nut, tailpiece, and sealing groove for damage. Match this part by size, application, and part number to help ensure a dependable fit. Replacement union O-ring for compatible W. Cooper parts Helps seal removable plumbing connections Useful for leaks around union fittings Supports routine equipment service and repair Confirm fitment and clean sealing surfaces before use
![W Cooper O-Ring [Union] (6573)](https://cdn.shopify.com/s/files/1/1751/9347/files/35-231-1014_XL.jpg?v=1777962336&width=480)
