The GIEBEL adsorber of the VARIO PA-D_NBR series have a strong aluminum valve part and a disposable replacement cartridge. All GIEBEL adsorbers of the VARIO PA-D_NBR series are equipped with NBR seals.The handling is very simple, it will only open the latches and the entire cartridge can be changed. With the stable and frost-proof valve part, these adsorbers are optimally suited for extreme, dusty environmental conditions. It is mainly used on hydraulic units, gearboxes or storage tanks. Due to the large valve cross-sections of the pressure build-up is minimal even at high air currents.