Cat Water Fountain Filters, 6 Pieces Triple Filtration System Replacement Filter Fit for 84oz/2.5L Cat Pet Fountain, 6 Filtration System and 2 Pre-Filter SpongesWide Compatibility Compatible with most 84oz 2. 5L round stainless steel pet fountain on market (Attention: Please confirm the size of your cat fountain before purchasing) Healthy and Safe MaterialThis cat fountain filter is made of environmentally friendly materials, non toxic and harmless, which will not affect the health of pets, you can use it with confidence Multi layer Filtration System Composed of non woven fabric, activated carbon and ion