Perfect Match - The charcoal water fountain filters compatible with for Aookupett, compatible with for cat water dispenser and other pet water fountain that use the same size. Great Package - Bulk pack of 12 cat water fountain filters for your Pet Water Fountain. 4.4Inch x 1.69Inch x 0.35Inch (. 11.2x4.3x0.9cm). Large packaging meets your replacement needs. Premium Quality - Each pet fountain filter is composed of activated carbon, ion exchange resin and non-woven fabric. They can filter hair, heavy metals and improve the taste of the water. Frequently Of Replacement - Replacement carbon filters should be changed approximately every 2 to 4 weeks to maintain water freshness. (depending on the size and number of pet using the fountain). Recommendations - To prevent the activated carbon dust (it not harm your pets) from shedding into the water, please soak the filter in water for 2 minutes and rinse it thoroughly under running water before use. Improved Taste: filters reduce the taste and odor of chlorine found in tap water, which can make the water more appealing to cats. Quantity:12 Set Colour:As Shown Material:non-woven fabric Package Contents: 12 * Pet Water Fountain Filters 12 * Blue Sponges Foam Filters 12 * White Sponges Foam Filters Only the above package content, other products are not included. Note: Light reflection 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.