Compatibility Guaranteed: Specifically designed for 7L or 230oz or 1.8G stainless steel dog water fountains, these replacement filters your pet's water remains clean, fresh, and tasty. Perfect for maintaining a healthy hydration habit for your pets. Advanced Triple Filtration System: Features a three-layer filtration system including high-density cotton to filter particles and debris, along with activated carbon that absorbs odors and impurities, ensuring the water is always fresh and pure. Enhanced Pump Protection: Includes a circular pre-filter sponge that captures hairs and large impurities, boosting the carbon filter's performance, and a high-density rectangular sponge that prevents debris from entering the pump, thereby extending its lifespan. User-Friendly Maintenance Tips: For optimal use, soak the filter in clean water for 5 minutes before installation, then rinse thoroughly to prevent carbon dust from entering the water, ensuring a clean drinking experience for your pets. Regular Replacement Schedule: To maintain optimal filtration and water purity, replace the filter and sponge every 2-4 weeks. If you have multiple pets, consider changing the filter more frequently and cleaning the fountain regularly to the best water quality. Product Benefits: Removes Impurities Colour:As Shown Material: Fiber Specification:8 Set Package Contents: 8 x Filter 8 x Sponge 8 x Round sponge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.