【Product Details】 Filter Features The non-woven fabric adsorbs lint and particles, preventing them from entering the aquarium. 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. Drain the water and replace the old filter with a cotton pad or a new filter. Can be used for several months per pack Generally, 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. *Instant purchase welcome・Midnight silent purchase OK◎ *Bulk purchase welcome, feel free to comment! *Anonymous shipping・Free shipping! ・Please check the actual photos for the condition of the product♪ ▲In the event of a defect Please let us know before evaluation ( _..)_♡ ※To keep the price as low as possible, we may ship the product without the box due to shipping costs. ※Although it is a new, unused item, it has been opened for photography, so it is listed as "Like new"! ※Please understand that it is stored at home and shipped in simple packaging, and purchase it(*´︶`*)❤︎ #kuu☆Click here for a list of products✨ ☜ Automatic Cat Water Dispenser Cordless Filter Sponge 10 pieces 5-25 52