AUTOMATIC REFILL: The cat & dog water bowl dispenser slowly dispenses water to prolong time between refills. Perfect for pet parents with busy lifestyles. Holds 4 gallons for large pets. WITH CHARCOAL FILTER: BPA-free plastic pet water bowl includes one charcoal filter to encourage pets to drink fresher water. Base & bottle screw together for convenient assembly & cleaning. FOOD & WATER: Keep pets fed with fresh food & water with a variety of our products. Check out our airtight dry food storage containers, bowls for kennels, gravity water bowls, automated food bowls & travel accessories.