Product: Haquoss Overflow Box 2
This item is designed to equip an aquarium with a trickling filter under the table or a sump when the tank does not have the holes fitted on the bottom for the water outlet. After hanging OVERFLOW BOX on the aquarium's side, connect it to the filter under the tank using a tube; fill it with water and aspire from the with tap in equipment; automatically the water will drop in the filter and now you'll can turn on the recirculation pump of the tank. In case of electrical failure, OVERFLOW BOX will switch off and it will re-start when the electric power will come back on to avoid water overflowing. Suitable for aquariums up to approximately 600 lt.