Built-in double filtration: The safe filter has an excellent effect on refreshing water, making your pets healthier. With strong adsorption function, activated carbon removes impurities and odors, allowing your pets to enjoy clean water. PP cotton filters out coarser debris such as hair and deposits in the water. Efficient and durable: 1 filter lasts you for 2 to 3 weeks, but in order to better allow your pets to drink clean water. It is recommended of it in about 2 weeks, which can better purify the water and make the water more refreshing, providing good-tasting water for your dog or cat. Easy to use: This ceramic filter is easy to install on the Safe fountain. Please note that rinse the filter with water before use, and then you can clean the fine toner produced during transportation to make it clean and delicious, so that your pet falls in love with drinking water. High precision: This filter provides the best water quality for your dogs and cats thanks to its unique design. The