The Aqua Medic overflow box hangs over the outside of the aquarium. A constant water level is maintained after the start of the overflow.
Water circulation is achieved by pumping the water from the sump into the aquarium, and then via the overflow box back into the sump. This makes it possible to connect aquaria to under the tank filter systems without having to drill holes in the aquarium.
Over Flow Box 5000 for up to 5,000 l/h
