【𝐖𝐢𝐝𝐞 𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐢𝐥𝐢𝐭𝐲】: Our filter is compatible with most stainless steel pet water fountains on the market, including ONECUTE, Nautypaws, Tomxcute, Soofpet 3.2L/108oz and 67oz/2L stainless steel pet water fountains. 【Efficient filtration system】: Each filter is composed of coconut shell activated carbon and high-density fiber cotton. The high-density fiber cotton filters out hair and debris, while the activated carbon particles remove chlorine and odors, ensuring that your pet drinks fresh water. Additionally, our filter sponge can better block impurities and extend the life of the water pump. 【Protecting pet health】: Maintaining a clean water source can help cultivate good habits in pets to drink more water, which can effectively avoid urinary tract infections, stones, and other pet diseases. 【Recommended replacement frequency】: To maintain a clean and healthy water source, we recommend replacing the filter every two weeks in the summer and every four weeks in the winter. If multiple pets share a water fountain, the replacement frequency should be increased based on the amount of water consumed. 【Instructions for use】: Before use, soak the filter in water for 2 minutes and then thoroughly rinse it with tap water to prevent the activated carbon dust (which will not harm pets) on the surface of the filter from falling into the pet fountain. Our pet water fountain filter is the perfect solution to keep your pet's drinking water clean and fresh. Compatible with most stainless steel pet water fountains on the market, our filter efficiently removes hair, debris, chlorine, and odors, ensuring your pet drinks clean water. Maintaining a clean water source is crucial to cultivating good habits in pets to drink more water, which can effectively prevent urinary tract infections and other pet diseases. We recommend replacing the filter every two weeks in the summer and every four weeks in the winter to maintain a clean and healthy water source. The filter is easy to use - simply soak it in water for 2 minutes before rinsing it thoroughly with tap water. Keep your pet healthy and hydrated with our pet water fountain filter.