Perfect Fit: Compatible with 2L and 2.5L cat water fountains (67oz and 84oz). Filter size: 10cm/3.9", center hole size: 2cm/0.79". Designed for 2L/2.5L Water Fountains. Carefully crafted to fit perfectly in your 2L or 2.5L water fountains, our filters utilize eco-friendly materials to provide the clean, fresh water your pet deserves.
eBay