TQDinvent plus hexagonal manifold and galvanised plenum boxes

Photo: Mariusz Młynarczyk / CloudAir.tech

Close view of the "TQDinvent plus" and "TQDinvent" boards from TQD, showing a hexagonal galvanised manifold with grey spigots, rectangular plenum boxes, white round ducts, blue flexible hoses and a disc valve. Both boards carry the heading "Wentylacyjny system rozdzielaczowy".