“Your pet can drink clean water we have always passed on”. Size: 12.5 x 12.5 x 1 cm The filter contains non-woven fabric and volcanic carbon, which can filter dirt more effectively. than other normal activated carbon filters. You can keep the cat’s drinking water clean and fresh. 1. PP Cotton: mesh filters can filter out hair, sediment and debris 2. Activated carbon: this flower filter removes bacteria and chlorine odors. Rinse thoroughly with water before use. It is recommended to wash with water for five minutes before each use and replace the filter element every 2 to 4 weeks to keep the water clean.