General description This 16 Pack WF050 Pet Fountain Replacement Filters are designed to be compatible with WF050 and WF100 cat water fountains. Featuring a triple filtration system that includes sponge, ion exchange resin, and activated carbon, these filters effectively capture hair and debris, enhance water quality, increase oxygen content, and help prolong the life of your water fountain pump. Technical specifications Color: black and white Material: carbon fiber Package Contents: 16 * Filter sponge Measurement allowed error: +/- 1-3 cm Installation Soak the water fountain filter in water for 10 minutes before use. Rinse thoroughly under running water. Usage The water fountain filter helps keep your pet's drinking water clean and fresh, promoting better health for your cat or dog. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.