MPRQT Reducing manifold is used for branching out extraction ducting, commonly by using PUQT flexible hoses which are directly connected to terminal units. The reducer allows to maintain a even extraction from each of the spigots, the number of which can range from 2 to 4. Standard dimensions are given in the table below. Other combinations of diameters and spigots (e.g. spigots without turned-up edge for flexible hoses) are available on request.