General description Replacement pollen filter for your ventilation appliance. These pollen filters from vhbw ensure your ventilation unit is ready for use again, effectively removing pollen, hair, coarse particles, and fine dust to maintain clean, allergy-friendly household air. Technical specifications Dimensions (L x W x H): 36.7 x 18.4 x 2.3 cm Filter class: F7 Colour: white Weight: 126.5 g Compatibility and accessories Compatible with Stiebel-Eltron LWZ 304 Trend Replacement for 231332, FMS F7-2 Installation Filters can be installed quickly and without tools into the slide compartment of the ventilation unit. Usage To maintain the filter performance of your fan, the filters should be changed regularly.