Feature 1. Clean Water, the unique replaceable design filter can effectively filtrate the hair, odor, and chlorine. Consequently, the fountain can give cleaner water to pets and reduce the risk of developing illness. 2.Design Pump, the unique designed Silent Pump is deployed with customized suction cup to diminish the noise to a minimum. 3. Capacity is 1.6L, no need to replenish water frequently, and it can meet the drinking needs of cats, dogs, birds and other pets of various sizes. No need to worry about your pets not getting enough fresh >drink when you go to work. Material: PC Item Color: Fully Transparent(Let your pets see the water clearly) Maximum Capacity: 1.6L Filter Replacement Time: 1.The Charcoal Filter better to be exchanged every month to achieve good filtering effect. 2.In intelligent sensor mode, Charcoal Filter better to be exchanged every 2 months. 3.It is better to reserve an Extra 1-2 PCs Charcoal Filter for your pets