About this product

【Perfect Match】The diameter is about 5'', inner circle is 1.5''.

【4-Layer Protection- Keep Your Pet Healthy】:Each filter is composed of a cotton layer, activated carbon, and an ion exchange resin. It can effectively remove impurities, filter hair，heavy metals, and odors. Get high-quality drinking water，Reduce the incidence of pets，make pets live longer and healthier.

【Life Cycle of Each Filter】:To prevent the activated carbon dust from shedding into water, please soak the filter in water for 2 minutes then rinse thoroughly under running water before using. The life cycle of a filter is 1 to 2 weeks in summer and 2 to 4 weeks in winter.If multiple cats are using the fountain, more frequent replacement will be necessary.

【What You Get】:5 pack premium cotton activated carbon replacement water fountain filter for cat and dog, pet. The Size: inner diameter is 1.5 inch,outer diameter is 5 inch.