The large capacity water & food storage is ideal for short stays away from home, & fewer refills make it convenient for busy pet parents. Bottles are made of PET plastic, making it healthier for pets and more environmentally sustainable than the PVC bottles that are currently on the market. Bases feature Microban® Antimicrobial Protection that helps prevent the growth of stain & odor-causing bacteria. Microban® protection works 24/7 and doesn’t wash away, providing an added level of defense against damaging microbes for the lifetime of a pet’s bowl.