Bradford Ventilation E-Duct has been specifically design and manufactured, in Australia, for use as an air extraction point in sewer systems and pipes. They are constructed from a combination of corrosion resistance aluminium and stainless steel for durability. Critical components, such as the bearing, are located so it is not in the line of direct air flow from potential corrosive fumes. The ventilator is powder coated inside and out with polyester powder to protect against potential corrosive fumes and elements. The combination of these features creates a sewer ventilation system that offers long life and high performance.

Bird mesh, made out of galvanised steel, is fitted to stop large bird or foreign object going into the ventilator.