Filter Size is 5 * 5 inches, the diameter of inner circle is 1.45 inches. Compatible with MOOBONA Pet Fountain and fit for other same size of pet fountains as well, please double check the size before purchasing.
Up to 12-Pack Premium Activated Carbon Filters, enough for a 6-12 months use.
Composed of a cotton layer, activated carbon and an ion exchange resin for filtering hair and residue, remove odors and soften water, getting better water tasting.
Suggested to replace it 2-4 weeks to keep the water clean and fresh.
Rinse it before use to prevent the activated carbon dust from shedding into water.