The new Stainless Steel and Wash-Down "PKS" component system arms are advanced extractor arms that bring together high performance and "user friendliness" to extractors that can be customized to a multitude of applications, depending on the diameter and reach demanded by a particular application. Different hose types and diameters allows the engineer or system designer to select the correct type and diameter of hose according to the exact specification and "Duct Velocity" required by the application. In addition, you can select an extractor with working radii (Extractor Arm Length) from 5' to over 40' - the longest reach available on the market. NB: When selecting the hose length please add an extra 1M (3') to the extractor arm length to ensure enough hose is ordered.