10pcs Filters for Battery Operated Cat Fountain

Excellent Filtration System - The carbon filter is made of cotton, coconut activated carbon, and ion-exchange resin, which effectively filters hair and impurities from the water, allowing cats to drink fresher water. Easy Installation - Soak the filter in a clean container for 5 minutes. The filter must be fully soaked before use; otherwise, water cannot pass through it. (The water in which the filter element is soaked will be colorless or yellow; this is normal.) Super Long Lifespan - The cat fountain system will automatically prompt for filter replacement after at least 300 hours (orange light illuminated, indicating the need to replace the filter), or consider replacing the filter with a new one depending on its current condition.