Ultra-quiet & no water automatic power off: The pump of the cat fountain is ultra-quiet (less than 40dB), when there is a lack of water, the pump will automatically power off to protect the circuit. Water shortage reminder function: pet fountain are equipped with LED lights. When the water is not enough, the red light will light up to remind you to add water for your cats or dogs. BPA-free: The water dispenser is made of high-quality ABS material, which is durable and easy to clean. It is recommended to clean the water dispenser once a week. Triple filtration system: The dog water fountain is equipped with 3 replacement filters. Each composed of activated carbon, ion exchange resin and non-woven fabriccreating a triple filtration system to help your pets maintain healthy drinking water. Super 2.5L capacity: Large capacity pet drinking fountain for small and medium-sized pets. with a transparent water level window, easy to monitor the amount of water. 3 water flow modes to attract pets to drink more water.