Drinkwell Hy-drate will keep the water in your pet's bowl fresh and filtered using a filtration system. Hy-drate is able to be attached securely to any water bowl using small powerful suction cups. While circulating water, the filter will trap particles and debris, such as fur and food particles, within its mesh. Your pet's water will come out cleaner and better-tasting using Hydrate's activated carbon filter. The pump is submersible for quite continuous use. With the water constantly moving, your pet's natural instinct to drink more water will increase, granting more of the natural benefits of drinking more water. Water movement increases your pet's natural instinct to drink more water Activated carbon filter removes chlorine, odor and small particles Quite, submersible pump for continuous use Powerful mini suction cups keep it in place Meets UL73/CSA - C22.2 No. 68-92 safety standards Includes UL listed low-voltage, Class 2 power supply