Large Capacity2 Gallon (up to 2.5 Gallon) capacity dog fountain is perfect for large dogs such as golden retriever, samoyed, husky, labrador, etc. The wider water bowl allows multi-pets to drink from different sides at the same time. Furthermore, a 500ml capacity storage water lid can prevent from a power failure or a 3 days short trip. The larger capacity meets large dogs’ drinking needs to stay hydrated, prevent kidney and urinary diseases.