Petmate Replendish Waterer (4 Gallon, Blue) – An extra-large gravity water dispenser with a 4-gallon reservoir to keep multiple pets or big dogs hydrated. The bottle gradually refills the dish below, so fresh water is always available. It has a charcoal filter to reduce impurities and Microban antimicrobial protection to help prevent slime. The high capacity is especially useful for kennels, outdoor use, or busy households, meaning you won’t have to refill as often. Your pets get clean, flowing water and you get peace of mind, knowing they won’t run dry even on the thirstiest days.