[Compatible]The cat water fountain filter is compatible with 360 stainless steel cat fountain and cupcake ceramic pet drinking Fountain. [Filter]The carbon filter helps purify the water and eliminate bad odors, while the foam filter blocks out any hair, dust or food debris. [High quality]Made of eco-friendly and non-toxic materials, the pet water fountain filters help ensure the water quality and provide healthy and pure water to protect your pet's health. [Clean]Before use, soak and flush the filter with clean water,clean the filter every time you change the water of the pet fountain, and change the filter every 2-4 weeks. Material:Non-woven fabric, ABS colour:White Package Contents: 8 * water dispenser filter elements (about 4x2.5x1.5cm) 2 * sponge filter elements Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.