Compatible with various water fountains. To ensure compatibility, please check the product images and confirm the model before purchasing to avoid errors. Triple filtration system: The carbon filter helps remove odors, soften water, and improve the taste and quality of your pet's drinking water. The filter sponge captures pet hair, dirt, and food particles, providing clean and healthy water. Made from eco-friendly materials, these water fountain filters help maintain water quality and support your pet's health. The filter helps purify water and reduce bad odors, while the pre-filter sponge blocks hair, dust, and food debris. Before first use, soak and rinse the filter thoroughly with clean water. Clean the filter each time you change the fountain water, and replace the filter every 24 weeks. Color: white + black Material: Cotton Package Contents: 12 x filter elements 12 x filter cotton Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3 cm.