Hand manifold asymmetrical FI 150mm 45° with edge under the band.Hand manifold adjustable FI 150mm for extraction is a device used to distribute the flow of air or other gaseous substances evenly in the extraction system. It is used in various industries such as industry, laboratories and ventilation systems.The main function of the adjustable manifold for extraction is to control the amount of flowing air or gaseous substances in different branches of the extraction system. This allows you to adjust the amount of extracted air at different locations, which is particularly useful when different levels of extraction are required or in areas with different pollutant loads.Adjustable manifolds for extraction are usually equipped with adjustment flip-flops to control the air flow. These flip-flops can be manually adjusted, depending on the type of extraction system and user preference.