This is a 3-port brass PEX manifold with individual ball valves (blue handles). It has a 3/4\ NPT inlet and three 1/2\ PEX outlets. Made from low-lead brass for durability. Designed for radiant floor heating systems to control water flow to different zones. Easy to install – just connect your main supply line to the inlet and run 1/2\ PEX tubing from each outlet to the heating loops. The valves let you isolate zones for maintenance. A compact, reliable manifold for DIY or professional hydronic heating projects.