Ventilation Boxes

25928 ventilation boxes products are offered for sale by suppliers on Alibaba.com, of which hvac systems parts accounts for 3%, industrial fans accounts for 1%, and tower & pedestal fans accounts for 1%. A wide variety of ventilation boxes options are available to you, such as manufacturing plant, construction and building material shops.You can also choose from oem, odm and obm ventilation boxes,as well as from steel, iron, and stainless steel ventilation boxes, and whether ventilation boxes is wall fan, duct fan, or free standing.