The PetFusion H2O Gravity Dog and Cat Waterer keep your pet hydrated with less effort required on your part. The automatic gravity design replenishes your pet's water supply keeping their thirst quenched throughout the day. When the level gets low, the water hopper automatically fills the water reservoir. A large water bowl attaches and locks into place for added security. There is also a large removable cap on the bottle for easy refilling and cleaning convenience. Gravity causes the water dispenser to consistently supply your pet with water. The ridge located on top of the water reservoir assists when refilling, opening the lid off the base. A transparent bottle and white base blend in seamlessly with any kitchen decor. Crafted from durable, pet-safe BPA-free PP plastic and the reduced seams and water-release areas help remove buildup in the lower basin. The water basin, lid, and reservoir are separate for hassle-free cleaning. Place the water basin and lid on the top rack of your dishwasher and hand wash the water bottle with soap and warm water. 100% recyclable.