GMX600NM Pool Filter Flange Valve Clamp for Hayward Pro Series Sand Filters Part number GMX600NM Key benefits - Provides a safe and reliable seal for Hayward Pro Series sand filters, improving filtration performance and reducing leaks. - Wide compatibility with Hayward Pro Series sand filters and Vari-Flo valve assemblies, making it a versatile replacement part. Compatible models - Hayward Pro Series sand filters: S144T, S164T, S166T, S180T, S210T, S210S, S220T, S220T2, S230T, S244T, S270T, S310T, S360T - Note: not compatible with Intex filters Includes and installation - Includes valve clamp, nuts and bolts for a complete assembly - Easy to connect and tighten; tighten by hand first, then use a tool to snug slightly to avoid damage or cracks to the valve seat Durability and material - Constructed from high quality Noryl material - Built to withstand regular use and designed for long-term durability Size and fit - Fits sand filters with an 8 to 8.5 inch diameter - Not suitable for 12 inch pool sand pumps - Please confirm size before purchase (see image 2) and verify that your equipment is a Hayward series model Usage scenarios - Replacing a worn or leaking clamp on a Hayward Pro Series filter such as the S144T - Upgrading or maintaining a pool or spa filtration system with a Vari-Flo valve assembly - Routine seasonal maintenance to ensure a secure, leak-free seal Additional notes - This clamp is designed specifically for Hayward filters and is not compatible with Intex filters - Please review the list of compatible models to ensure proper fit before purchasing