• Visual flow gauges for each circuit on supply side, flow gauges have internal polymer cages to prevent build up of debris, can be used for individual circuit isolation and have an accuracy of +/-10% Circuit balancing/isolation valves on return side Two 1 in NPT supply and return manifold isolation valves with thermometer housings, two mini thermometers included Two air vent/boiler drain valves with manual air vent and 3/4 in GHT hose connection Four drywall screws and four self-tapping screws for mounting

Pre-assembled and factory pressure tested. For use with 10.1 mm and 3/8, 1/2, 5/8 and 3/4 in. RAUPEX® pipes using Rehau® manifold connections. Compatible with manifold valve actuator (Art. 260166). May be mounted in any orientation.