An automatic water fountain for pets. The circulation system takes oxygen into the water and keeps it fresh and tasty. Since it circulates constantly, pets can drink clean water even when you are away from home. Uses a filter containing activated carbon to remove food residue, coat, dust, etc. Low power consumption and economical. Since the attachment can be removed, it can be adjusted to the size and taste of dogs and cats. * Change the water once a day as a guide. * Clean the pump every 2 weeks. * Replace the filter every 2 to 4 weeks. ● Replacement filter sold separately PWF-200F