Easy installation, typical in less than 30 minutes. Replaceable eight-layered water filters can be replaced at your convenience. Eight-layered filter with activated carbon guarantees clean, odor free and algae free water. Maintains constant water level in bowl even when power fails thus making sure your pet never goes thirsty. Ergonomically designed handle on the bottle for convenient filling and carrying. An anti-spill check valve prevents spills while refilling. Clear storage container enables easy check on water levels from all angles. This waterer can be used with pets such as cats, dogs, ferrets, horses, birds, pigs, deer, ducks and more.