Rectangular damper is an air pollution control equipment that customers can buy from us. Galvanized steel and aluminium are the material using which the blades of this equipment are made. The damper is made leakproof by using EPDM seal on the blades. The multi blade damper is applied in duct to control and isolate the flow of air. Apart from its primary use in ventilation duct, it finds use in air flow regulator, AHU air flow regulating & shutoff unit, etc.