General description This 8-piece set of replacement filters is designed for 2.5L and 2L stainless steel cat water fountains. The activated carbon filters effectively remove dirt, hair, sediment, and odors caused by chlorine and bacteria, ensuring your pet has access to clean and fresh drinking water. Technical specifications Quantity: 8 replacement filters Compatibility: Suitable for 2.5L and 2L stainless steel water dispensers Usage Rinse the filter before use to prevent carbon dust from contaminating the drinking water. Replace the filter every 2 to 4 weeks, depending on the number of pets using the fountain.