Product Included: 2-piece washable Hepa Vacuum Cleaner Set with main filter, foam filter, and 1 pc cleaning brush. Suitable for Bosch Flexo Series 4 cordless vacuum cleaner and cordless vacuum cleaner 25.2V 21.6V models including BBH32101, BBH3211GB/01, BBH3Z0025/01, BBH3Z0025/03, BCH3, BBH3. Spare parts for Bosch Flexxo Series 4 filter accessories, offering perfect compatibility and quality. PERFECTLY COMPATIBLE: Foam filter replacement for Bosch Flexxo Series 4 filter. Compatible with Bosch cordless handheld vacuum cleaner models 25.2V and 21.6V such as BBH32101, BBH3211GB/01, BBH3Z0025/01, BBH3Z0025/03, and other compatible models. WASHABLE AND REUSABLE: Premium replacement part for Bosch Flexxo Series 4 (25.2V or 21.6V) cordless vacuum cleaner filters. Durable and easy to install. Regular cleaning is recommended to maintain optimal performance. Wash the filter once a month for best results. Replace the filter every 3 to 6 months as needed. HIGH-EFFICIENCY FILTRATION: A clogged or dirty air filter can reduce suction and efficiency. This replacement filter helps capture dust, pollen, and mold particles, improving air quality. Ideal for maintaining a clean environment and beneficial for allergy sufferers. Made from high-strength materials to ensure long-lasting performance and effective filtration.