2-1/2-gallon waterer. This large capacity waterer is ideal for short stays away from home, and fewer refills anytime. Featuring Microban Antimicrobial Protection that helps prevent the growth of stain and odor-causing bacteria, keeping it cleaner for longer. Easy to clean large mouth bottles that are made with PET plastic which are more environmentally sustainable. Submerged water filtration for cleaner water. Twist lock bottle with a safety bottle ring easily locks into base. Spill resistant bowl is dishwasher safe.