Compatible with: Fan cover filters for Bosch, Siemens, Neff, Gaggenau and Construct, e.g. Siemens HZ9VRCR0 17004796, Bosch HEZ9VRCR0 17004805, Neff Z821VR0 17004806, Gaggenau CA2821111 and Constructa C600 model for image 1Z9. Function: The activated carbon filter can filter the air very effectively, neutralizing the smell caused by cooking and thus ensuring fresh air in the kitchen. Recommendations: The replacement recirculation air filter is a disposable item, we recommend replacing it every 6-12 months depending on your cooking habits. Product size: The size of the activated carbon filter is 193 x 75 x 35mm and is easy to install. Box contents: 4 replacement filters. When shopping, pay attention to the product's size and measurements to ensure it meets your needs.