Good to know- This Petkit smart water fountain's 3 litre capacity will keep your furry friends hydrated - You can keep an eye on the water level and filter status thanks to Petkit app - Choose from normal, smart or night mode to match your pet's drinking needs - No more nasties - its 3 stage filtration makes sure that your furry friends always get clean water - The wireless design and detachable base makes it super easy to clean