Specification Modern Industrial Aluminum Alloy Ventilation Grille Square Return Air Vent for Office Outdoor Basement-Versatile Design ★ Durable material：Linear Bar Air Grille made of high quality aluminum constructed with powder coated finish,No sharp edges,no deformation,durable and long lasting.★ The sizes：Powrocket Linear Bar Air Grille outer dimensions are 12.8″L X 5.9″W,Suitable for the air duct/drywall opening…

Modern Industrial Design Drywall Inlay Access Panel Aluminum Alloy with Lock Finished Ceiling Inspection Opening