AIR-TREATMENT SYSTEM FOR A UTILITY VEHICLE

An air-treatment system for a utility vehicle, comprising at least one air-treatment unit and at least one air-dryer cartridge, detachably screwed onto the air-treatment unit, wherein the air-dryer cartridge has an identification element on an outer side of the air-dryer cartridge and the air-treatment unit has a counterpart for the identification element wherein, in the assembled position, the identification element and the counterpart for the identification element are arranged substantially in a direct line-of-sight connection.