PREMIUM 6 PACK: Package includes 6-pack of premium pet fountain replacement filters. They are individually packaged and sealed to maintain high quality. , FILTERED WATER: Each filter is composed of -Friendly Shell, KDF, Ion Exchange Resin, Quartz Sand, Coconut Activated Charcoal and Cotton. They can filter hair, heavy metals, and improve the taste of the water so that pets can drink clean and water all day, which helps to increase water consumption and reduce the risk of urinary tract infections. [Effect] water fountain filters provide clean, water to your pet, which helps to increase water consumption and reduce the risk of urinary tract infections. [Recommendations]Please soak the filter in water for 2 minutes and rinse it thoroughly under running water before use. EASY TO REPLACE: Easily removes when you clean your pet's fountain. According to your pet's drinking frequency and the number of pets using the fountain, please replace the filter and the sponge every 3-4 weeks to properly maintain your pet fountain. Colour:White Material:plastic Package Contents: 6 x Replacement 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.