Item Descriptions:-Compatible with the Nugget, compatible with the Nugget Lite Water Drinking Fountains.-The 12 pieces of pet drinking machine circular filter element with a size of 6.5x6.5x1.7cm.-The cotton layer, activated carbon and ion exchange resin three-layer filtering system can filter impurities such as hair, large particles, heavy metals, etc., improve water quality, and allow pets to drink clean and fresh water.-The fountain filters provide running and clean drinking water for cats and dogs, helps to increase water consumption.-Before use, soak the filter in the water for 5 minutes and change the filter every 2-4 weeks.Package:12PCS Pet Fountain FiltersItem Specifications:Color:WhiteMaterials:Activated carbon, resinSize:6.5x6.5x1.7cm