The Waterway 672-4580 4-port manifold is designed for compatible plumbing applications using a 1-1/2 inch slip main connection and four 1/2 inch socket branch ports. A manifold in this format is useful where a larger rigid line needs to feed several smaller hard-pipe outlets in a clean and structured way.Socket-style branch connections make this Waterway manifold especially practical for systems built around rigid plumbing rather than flexible tubing. That can be a major advantage in installations where the goal is a more permanent, organized branch layout.For compatible pool and spa plumbing, this Waterway manifold is a practical replacement or installation part when four 1/2 inch rigid branches are needed from a 1-1/2 inch main line. Waterway 4-port manifold 1-1/2 inch slip main connection Four 1/2 inch socket branch ports Useful for rigid hard-pipe distribution layouts Supports clean and structured plumbing design