Uponor Wirsbo has introduced the preassembled TruFLOW Manifold system. Contractors simply remove the manifold from the box and mount it on the wall. Made of extruded brass, the manifold's high-flow capacity handles up to 12-loop configurations. Fast and easy to install, the TruFLOW features an electronic instrument, the Wirsbo FlowMaster, to read the flow and temperature for individual loops, resulting in accurate data for quick balancing or troubleshooting issues. Storing information for up to 12 manifolds, the Wirsbo FlowMaster can download data for accurate records. Uponor Wirsbo. Circle 4.