Elastic connecting pieces for sound and vibration-damped connection of ventilation ducts. With flanges on the fan side. With plug-in pieces on the pipe side. ELA ..: Made of plastic. ELA .. Ex: Made of antistatic material for use in potentially explosive areas.Article: ELA 22, Flange material: galvanized steel, Sleeve material: plastic, Weight: 1.35 kg, Weight with packaging: 1.4 kg, Suitable for nominal width: 224 mm, Width: 280 mm, Height: 280 mm, Depth: 220 mm, Width with packaging: 280 mm, Height with packaging: 280 mm, Depth with packaging: 220 mm