The Water Cat fountain has a capacity of 3.2L, so you don't have to fill it often. The cat's fountain filled with water can provide 8 to 12 days of drinking water, which makes your journey no worry. -Fontaine Stainless Steel Water Chat: 304 Stainless Steel is a good material for cat fountains, it is resistant to high temperatures, corrosion, oxidation and long service life. -Effective Filtation System: cotton layer filter, ion resin and active carbon, which includes adsorption, filtration, purification and other functions -Catfontaine can be mounted and removed effortlessly, making it easier to routine maintenance and cleaning. -If there is no water, the water pump prevents dry burning for 72 hours. Tip: This product does not contain an adapter. If the product does not work and does not exit the water, clean the chat fountain in time to avoid blocking the water outlet. Products include: 1 * cat fountain 3 * Activated Carbon Filter 3 * Foam Filter