Compatible with extractor hood models from Bosch, Siemens, Neff, Gaggenau, and Constructa, including Siemens HZ9VRCR0 17004796, Bosch HEZ9VRCR0 17004805, Neff Z821VR0 17004806, Gaggenau CA282111, and Constructa CZ9VRCR0 17006669. Refer to the image for compatible models. Functionality: The activated carbon filter efficiently purifies the air by neutralizing cooking odors, helping maintain fresh kitchen air. Recommendations: The recirculating air filter is a single-use consumable. It is recommended to replace it every 6 to 12 months, depending on usage and cooking frequency. Product size: The active carbon filter measures 193 x 75 x 35 mm and is easy to install. Box contents: 4 replacement filters. Please check the product dimensions carefully before purchase to ensure compatibility. Detailed product information, features, and specifications are provided in the title and description. We aim for your complete satisfaction. If you have any questions or concerns, please . We are happy to assist.