Dog Water Filter Pure Crystal PETIT Mocha, 800ml Antibacterial Activated Carbon Filter Square Type, 3 pieces I used it once, but my dog was scared of the moving water and wouldn't go near it, so I'm selling it!!! I threw away the original filter because I used it once. The replacement filters are new!! Please purchase only if you understand that this item has been stored at home (*^^*) ☆No individual sales. ☆Shipped via Mercari. Either Rakuraku Mercari Bin or Yu-Yu Mercari Bin We will ship via anonymous delivery.