 A further type produced by the company are fine filters with filtration degrees from 50 to 1000 μm.Since the late 1990s, Taprogge offers another filter system which retains fouling already at the intake into the cooling water system – in this way the entire system and the long cooling water pipes can be protected.The system called TAPIS (Taprogge Air Powered Intake System) is installed in the water at the cooling water pipe inlet in the form of a polyhedral housing with plain filter surfaces.