Crafted with a detachable body of robust, food-grade polycarbonate (PC), this pet water bottle may help make cleaning a breeze as it's dishwasher safe. The filter element, made from natural crushed coconut shells, is designed with your pet's safety and the environment in mind. Upon first use, the appearance of black powder foam may occur, which is normal. Pre-soaking the filter before its first use may help ensure it works optimally.