The Waterway 672-4690 6-port manifold is designed for compatible plumbing applications using a 1/2 inch slip inlet and outlet, six 3/8 inch barb outlets, and included plugs. This style of manifold is especially useful in compact systems where a smaller main line must distribute flow to several flexible branch lines while preserving configuration flexibility.The included plugs make it possible to close selected ports as needed, which is valuable in systems that may use only part of the manifold capacity or may be reconfigured later. This Waterway part is well suited to tightly packed spa or support-line plumbing layouts.For compatible small-diameter multi-line plumbing, this Waterway manifold is a practical solution when six 3/8 inch barb branches and adjustable port use are both needed. Waterway 6-port manifold 1/2 inch slip x 1/2 inch slip main connection Six 3/8 inch barb outlets with included plugs Useful for compact flexible-line distribution systems Supports adaptable and organized plumbing configuration