PREMIUM 6 PACK: Package includes 6-pack of premium pet replacement filters. They are individually packaged and sealed to maintain high quality., FILTERED WATER: Each filter is composed of - Shell, KDF, Exchange Resin, Quartz Sand, Coconut Activated Charcoal and Cotton. They can filter hair, heavy metals, and the taste of the water so pets can drink clean and water all day, which helps to increase water consumption and reduce the risk of urinary tract infections.[Effect] water filters 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 .EASY TO REPLACE: Easily removes when you clean your pet's . According to your pet's drinking frequency and the number of pets using the , please replace the filter and the sponge 3-4 weeks to properly maintain your pet .Colour:WhiteMaterial:plasticPackage Contents:6 x Replacement FiltersOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.