General description vhbw offers a G4 / F7 filter set in an 8-part pack designed for Wernig ventilation devices. This replacement filter kit ensures your ventilation appliance is ready for use, effectively removing coarse dust, hair, insects, and pollen from the air. Technical specifications Dimensions per filter (L x W x D): approximately 50 x 17 x 1 cm Filter class: F7 (red pollen filter) / G4 (black coarse dust filter) Type: coarse dust filter / pollen filter Material: plastic / synthetic fibre Colour: red / black / white Weight: 292 g Installation The filters can be inserted quickly and without tools into the slide compartment of the ventilation unit. Usage To maintain optimal filter performance, it is recommended to change the filters regularly. This filter set allows you to upgrade your ventilation unit to pollen filter class (F7) without the need for external pollen filter housing. Other information The air direction is marked on the filter elements. Content of delivery: 8x