Most tropical waters have a strong, but an even flow. In well filtered fish tanks the strong jet of the external filter might stress the fish and can cause CO2 distribution problems by the water friction making the dissolved gas evaporate from the water. The shape of the Outflow is designed to disperse the jet-type flow to an even and less invasive current in the aquarium.
Two sizes available:
M size fits 12/16mm hose, length 178mm.
L size fits 16/22mm hose, length 188mm.
