The Ventex 2620/2625 louver is an extruded aluminum, stationary six inch (152 mm) deep stormproof louver. The 2620/2625 design provides protection from water penetration while retaining a relatively high free area. Its sturdy construction makes it ideal for large projects where the louver covers a large span. Model 2620/2625 is AMCA certified for both water penetration and air performance.