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 20, Flange material: galvanized steel, Sleeve material: plastic, Weight: 1 kg, Weight with packaging: 1.03 kg, Suitable for nominal width: 200 mm, Width: 254 mm, Height: 254 mm, Depth: 220 mm, Width with packaging: 254 mm, Height with packaging: 254 mm, Depth with packaging: 220 mm