Compatible with various fountains. To ensure compatibility, please check the product image list and confirm it matches your fountain model before purchasing. 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. Material: Made from eco-friendly materials, these pet water fountain filters help maintain water quality and support your pet's health. Filtration: The filter purifies water and reduces bad odors, while the pre-filter sponge traps hair, dust, and food debris. Cleaning Instructions: Before 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 2–4 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: Due to light reflection and differences in display screens, the color in the image may vary slightly from the actual product. Measurement may vary by +/- 1-3 cm.