- Various combinations of weather resistant louvres and multileaf dampers or pressure relief dampers.
Combinations of weather resistant louvres and multileaf dampers or pressure relief dampers have a dual function in air inlets and exhaust openings of ventilation systems. They keep rain, leaves and birds from getting in, but also provide the option of restricting or isolating the airflow during ventilation system downtime.
angular
W: 400 – 2,000 mm
H: 345 – 1,995 mm