Master is more than ever your one stop shop in terms of HVAC-R with a complete range of the largest brand names in the ventilation sector. For your residential, commercial and/or industrial needs, Master offers equipments designed to meet the most strict requirements, whatever the application may be. In addition to our fan & ventilator lines, you will find a large variety of accessories such as grills, diffusers, louvers, fire dampers, access doors, flexible ducts and much more. Many items are already in our inventory, ready to be shipped.