2 liters capacity: 2 liters of water capacity is suitable for cats and dogs of different ages and multiple pet families. There is no need to replenish water frequently, just store the water for a week. Two flow modes: The cat fountain has two flow settings. You can customize the fountain mode according to your pets preferences. Waterfall mode and fountain mode can meet the different preferences of your pets. Each mode can meet the needs of various pets. Three-layer filtration system: Our cat water dispenser has a circulatory system, equipped with a replacement filter to purify the water, remove odors, filter particles in the water, increase oxygen content, keep the water fresh, and provide healthy water services for your pets . 1 Replace the filter system: equipped with a high-quality cotton carbon filter, which can filter hair and dirt particles, and remove sediment and peculiar smells in the water. This improves the taste and quality of the water and keeps the water clean and fresh for several days. Ultra-quiet operation, easy to clean: our pet water dispenser is energy-saving and environmentally friendly. Very quiet, less than 30 decibels, and will not disturb your cat or you at night.