4 pcs Activated Carbon Filters for Extractor Hood Siemens HZ9VRCR0 17004796, Bosch HEZ9VRCR0 17004805, Neff Z821VR0 17004806, Gaggenau CA282111, and Constructa CZ9VRCR0 17006669. Compatible with various extractor hood models from Bosch, Siemens, Neff, Gaggenau, and Construct. Please refer to the image for compatible models. Functionality: The activated carbon filter efficiently filters air and neutralizes cooking odors, helping to maintain fresh air in the kitchen. Recommendations: The recirculating air filter is a consumable item designed for periodic replacement. It is recommended to replace the filter every 6 to 12 months depending on usage and cooking frequency. Product Size: Each active carbon filter measures 193 x 75 x 35 mm and is easy to install. Package Contents: 4 replacement filters. Please verify the dimensions and compatibility to ensure the product meets your requirements. Detailed product information, including features and specifications, is provided in the title and description. For any questions regarding the product, feel free to reach out for assistance.