Troges weather protection louvers prevent the intrusion of snow, rain and small animals into the ventilation system. They consist of functional frames and slats of sectional, galvanised steel with bird-protection grid behind and PVC coating (green), mesh width (13 mm x 13 mm). The frame profile allows for universal installation in façades, appliances and ducts. On request, the weather protection louvers can be manufactured with primed or galvanized wall frame (35 mm x 3 mm) and wall brackets. Special design: EPOXY-coating in RAL color, frame and slats of aluminium.