Ventilation box for walls

3791 ventilation box for walls products are offered for sale by suppliers on Alibaba.com, of which axial flow fans accounts for 53%, registers & grilles accounts for 5%, and hvac systems parts accounts for 2%. A wide variety of ventilation box for walls options are available to you, such as hotel, office and industrial.You can also choose from aluminum, aluminum alloy and plastic ventilation box for walls,as well as from graphic design, total solution for projects, and 3d model design ventilation box for walls, and whether ventilation box for walls is return and replacement, free spare parts, or onsite inspection.