Replacement filters for HHOLove CT-FTKRF dog and cat fountain/drinker The filters are designed for the HHOLove fountain. They effectively soften the water and remove impurities from it. It consists of 4 parts: PP, cotton, activated carbon and ion exchange resin. It purifies the water from hair, dust, heavy metals, chlorine and other impurities. In addition, their installation will take only a moment and will not cause any problems. Note: it is recommended to change the filters every month. Included replaceable filters x3 sponges for filters x3 Manufacturer HHOLove Model CT-FTKRF Dimensions 134 × 134 × 11 mm Material ABS, PP, cotton, ion-exchange resin, activated carbon.