Hello, and thank you for viewing my items from among many sellers. ★ Only one available! ★ Free shipping! ★ No need to ask to buy! ※ Although I opened the item for inspection, it is as good as new. ● Please read my profile (discounts available, etc.♪) #ChunSHOP ↑↑ Discount available when purchasing with other items ✨ 【Product Details】 Filter Features Non-woven fabric adsorbs lint and particles, preventing them from entering the water tank. Activated carbon and ion exchange resin can remove pollutants. In addition, the resin can purify water and remove harmful metals. Replacing the filter is easy. After draining the water, replace the old filter with a cotton pad or a new filter. One pack can be used for several months. Usually, the filter is replaced once or twice a month. According to this, a pack of 10 filters can be used for six months to a year. If you have pets that drink a lot of water, or if multiple pets share a water dispenser, you will need to replace the filter more frequently. Cordless Automatic Water Dispenser for Cats (Filter Sponge) a5-297990021★★★★★✴︎&