SD-series roof fans are designed for ventilating utility buildings, as well as warehouses with a low level of air pollution. Fans designed for vertical operation are adapted for installation on roofs with a maximum pitch of 15°. They have a much-higher compression than traditional fans, so they can work with central exhaust-ventilation systems. Thanks to the use of 3-speed motors, it is possible to adjust the fan's parameters to the user's needs, depending on the connection method.This item is in the category "Home, Furniture & DIY\Heating, Cooling & Air\Air Quality & Fans\Extractor Fans". The seller is "fans4less_limited" and is located in this country: GB. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.