Performance tested to AS/NZS 4740:2000 Louvreclad Delta Series® two stage louvre is a 125mm pitch (1st Stage) Plus (62.5mm pitch second
stage) high-strength roll-formed perforated steel weather louvre system which achieves a Class A 100% effective rain defence, Class 3 aerodynamics and 42% free open area. This makes it the optimal screening and ventilation louvre for applications that require excellent weather resistance and good airflow.