• Cabinet: extruded aluminium angle sections to UNI 9006, with 23 mm sandwich panels of zinc-coated 0.6 mm gauge sheet steel and expanded polyurethane insulation, density 40 kg/m3. • Outlet port of rectangular section. • 3 speeds single phase AC motor, coupled to a forward-bladed double inlet centrifugal impeller. • Provided with 2 x ready-ported inlet panel, one for connection to a square section duct, one for connection to a circular section duct. • 1 x inspection panel with handle and triangular key. • Vortice speed controller