General description This Replacement Filter Kit includes 4 heavy-duty washable filters and a cleaning brush, designed specifically for the X-Pert 6.60 (RH6821 to RH6879) and X-Force Flex 8.60 (RH9611 to RH9695) models. It is ideal for maintaining consistent and efficient cleaning performance. Technical specifications Includes: 4 filters and 1 cleaning brush Material: Plastic Measurement allowed error: +/- 1-3 cm Installation Filters are designed for easy installation and removal. Ensure filters are completely dry before reusing to optimize performance. Usage Washable filters can be cleaned quickly with warm water and soap. It is recommended to replace the filters every 1 to 2 months for maximum efficiency. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.