Features: WHAT YOU WILL GET You will receive 6 pieces of cat litter box filters, sufficient for regular use and replacements. The filter pad diameter is approximately 29.7 cm (11.69 inches), width is approximately 7 cm (2.76 inches). APPLICABLE MODELS This litter box filter is compatible with Litter-Robot 4. Please verify your model before purchasing. Designed for easy installation and removal. ACTIVATED CARBON FILTER Made with activated carbon featuring numerous microscopic pores, increasing surface area for enhanced absorption of gaseous compounds and improving odor control. ODOR CONTROL The activated carbon filter effectively absorbs odors, helping maintain a dry and odor-free litter box environment. REPLACEMENT RECOMMENDATION For optimal performance, replace the filter monthly. Replacement frequency may vary depending on usage. Key Points: 1. Compatible with Litter-Robot 4; easy to install and replace. 2. Activated carbon construction with high surface area for effective odor absorption. 3. Helps maintain a clean, dry, and odor-free litter box environment. Specifications: Color: Black Material: Activated carbon Compatibility: Litter-Robot 4 Diameter: Approximately 29.7 cm (11.69 inches) Width: Approximately 7 cm (2.76 inches) Thickness: Approximately 0.5 cm (0.20 inches) Package Includes: 6 x Cat litter box filters Note: 1. Due to lighting and screen differences, actual color may vary slightly from images. 2. Slight measurement variations of 0.5–2 cm may occur due to manual measurement.