Waterway Vac Lock [1-1/2" MPT Blk] is a Waterway vacuum release system component used with compatible pool and spa safety vacuum release assemblies. Manufactured by Waterway Plastics, this part is intended for applications where matching the original component is important for fit and performance.These parts help maintain the integrity of vacuum release systems and should be matched carefully to the original assembly, color, size, and part number. Because many Waterway parts are series-specific, compare the shape, size, connection style, color, and part number with your existing component before ordering.Use 600-2201 when a direct replacement is needed for compatible Waterway equipment. It is a practical choice for service professionals, repair departments, and homeowners maintaining pool, spa, or bath systems with brand-specific parts. Replacement component for compatible vacuum release systems Helps maintain proper system configuration Useful for service, repair, or restoration work Available in application-specific styles and finishes Confirm exact model and part number before installation