All Hetta manifolds arrive pre-assembled, ranging from 2 ports up to 12 ports and come complete with isolating ball valves, adjustable flow meters, fill and drain points, automatic air vents and Hetta electronic actuators if the system requires. The manifold should be positioned in a central location in the property 600mm minimum from the floor to allow access for pipe connection. From the flow bar, warm water is distributed to each loop of pipe via the adjustable flow gauges, returning via the return valves into the return bar. Nickel plated extruded brass manifold pre-assembled for immediate mounting for both GSHP and underfloor systems.