General description Excellent Filtering System - The carbon filter is made of cotton, coconut shell activated carbon, and ion exchange resin, which can effectively filter hair and impurities in the water, allowing cats to drink fresher water. Technical specifications Service life: At least 300 hours Replacement indication: Orange light prompts filter replacement Installation Soak the filter in a clean container for 5 minutes before use. The filter must be fully soaked; otherwise, the water cannot disperse through the filter. The water in which the filter element is soaked may be colorless or yellow, which is normal.