The Ventex 2410A/2415A is a four inch (102 mm) deep extruded aluminum, high performance,stationary exhaust louver. The blade design provides an high free area and a blade design that makes it ideal for large architectural spans.. Model 2410A/2415A's clean design, optional continuous line construction and available blank-off panels make it ideal for architectural applications. Model 2410A/2415A is AMCA certified for both water penetration and air performance.