Vertical high performance louvre based on typical moisture eliminator blade design.
Vertical aligned double pass curved blades with large integral water trap.
QEF Vertical 33 louvre achieves Class A2 up to 3.5 m/s face velocity, with insect mesh fitted.
An economical alternative to the QEF Vertical Storm louvre, maintaining  Class A weathering to 3.5m/s at a slightly higher pressure drop

Brochure for QEF Vertical 33 Louvre QEF Vertical 33 Louvre

Data Sheet for QEF Vertical 33 Louvre QEF- Vertical 33 Blade Data Sheet RevA