Cylindrical duct silencer for ventilation systems. Design without baffle ensures no additional losses. The inside of the silencer is made of a perforated plate. Operating temperature between -40 °C and +150 °C. Item no: RSI 71/1500, material: steel, galvanised, colour: silver, weight: 49 kg, weight with packaging: 49 kg, width: 870 mm, height: 870 mm, depth: 1065 mm, width with packaging: 870 mm, height with packaging: 870 mm, depth with packaging: 1065 mm.