This is an antibacterial water dispenser for cats. One of the three filters has been used, so two are included. (Two additional, separate filters are also included, for a total of four.) It was used once, but the cat didn't seem to like it, so it's being offered for sale. Assembly is complete, so it can be used immediately after opening. Shipping will be in the product box as is, so please refrain from purchasing if you are concerned about this. - Product Name: THE PERFECT ONE - Purpose: Cat Water Dispenser - Included: 2 Hydrogen Server Filters - Features: Antibacterial - Manual: Instruction manual included Thank you for looking.