【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】 Includes 4 replacement filters, each with a diameter of 13cm. 【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 your pet 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 your pet with clean water, it is recommended to wash the filter daily to remove surface dirt, and simply rinse with clean water without using detergent. D-11