- - Our gravity pet water dispenser stands out for its innovative magnetic piston design, which is durable, rust-resistant, and ensures excellent leak-proof performance - - This pet gravity water dispenser includes 1 filter with a 3-layered filtration system (1)Microfiltration Cotton: Trapping even the tiniest impurities (2)Activated Carbon: Eliminating odors (3)Filter Barrier: Hindering pet hair. It provides pets with pure and healthy drinking water - This automatic water dispenser for cats designed with pet-friendliness in mind, it made of Food-Grade PP Material that is reducing cat black chin and ensuring safety and health of your pet - This pet water dispenser features a large 3.5liter capacity reservoir, it can last about 4-6 days for small pets, 3-5 days for big pets. so that it can reduce the frequency of refills. It is perfect for pet owners with busy schedules