DO PETSAFE DRINKWELL CARBON FILTER DO DRINKERS FOUNTAINS CARBON FILTERS 8pcs Set of 8 filters brush It has never been used, it is complete. This is why it is such an attractive price!! NrD252 About this subject Triple Filtering: Our replacement filters are made of high-quality cotton and high-quality activated carbon, which can absorb hair, dirt, and sediment and effectively improve water quality for your pet. The sponge prevents dirt particles from clogging and damaging the pump, extending the life of the pump. Excellent compatibility: our replaceable do carbon filters for cat fountains fit not only do Drinkwell fountains, but also do models such as Avalon, Pagoda, 1/2, 1, 2 Gallon, Sedona, Seascape and Seaside Butterfly. Easy to use: This do water fountain filter is easy to install and remove. Soak the filter in water for 5 minutes and rinse thoroughly under running water before use. Frequency change: Replace the carbon filter in the fountain every 2 to 4 weeks, depending on how often your pupil drinks water and how many animals use the fountain. Take care of your pet’s health: Good drinking habits have a positive effect on your pet’s health. For dogs and cats suffering from kidney disease or bladder infections, it is very important to drink clean, fresh water.