General description vhbw offers a clever solution with this G4 / F7 filter set, designed specifically for Wernig ventilation devices. This 4-part kit ensures your ventilation appliance is ready for optimal performance, featuring both coarse dust and pollen filters to enhance air quality. Technical specifications Dimensions per filter (L x W x D): approximately 18 x 12 x 4 cm Filter class: G4 / F7 Type: pollen filter / coarse dust filter Folding: Z-Line Material: synthetic fibre Colour: white Weight: 55 g Compatibility and accessories Replacement for Wernig 527005400 Content of delivery: 2x filter F7, 2x filter G4 Installation Filters can be inserted quickly and without tools into the slide compartment of the ventilation unit. Air direction is marked on the filter elements for proper installation. Usage To maintain optimal filter performance, it is recommended to change the filters regularly.