One-piece aluminum louver panel with pre-punched louvered vanes. The 18" x 24" opening size is the largest in the line - sized for full-size gable-end attic ventilation on residential structures. Designed for flush or recessed mounting in frame, brick, or veneer walls.

• 18" x 24" opening dimensions
• One-piece construction with louvered vanes
• Adaptable to frame, brick, or veneer walls
• Designed for flush or recessed mounting
• Supplied with FHA-required 8-mesh screen to keep out insects and debris
• Meets FHA minimum property standards
• Assembled and spot-welded for long service life
• LL Building Products part DA1824

Tip: Size denotes opening dimensions - measure the rough opening, not the outer flange.