【For Devopet Automatic Water Dispenser Only】 This filter unit is exclusively for the Devopet Smart Pet Automatic Water Dispenser model PF-03. It is not compatible with other brands' products. 【Package Contents】 4 replacement filters, 13cm in diameter. 【Triple Filtration】 Made of cotton layer, activated carbon, and ion exchange resin, it removes pet hair, heavy metals, dirt, and other substances from the water. 【Provides Clean Water】 Improves the taste of water, allowing pets to drink healthy and clean water. 【How to Use】 Rinse with water before use. It is recommended to replace the filter every 2 weeks. To provide clean water for your pet, it is recommended to wash the filter daily to remove surface dirt, and simply rinse with clean water without using detergent. D-11