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.
