Aerator FX | Fluval FX6,FX4,FX2 Canister Filters

A snap on multi-venturi device that connect directly to the stock Fluval series FX2,FX4 and FX6 canister filters outflow.  Inject large volumes of air for a powerful flow and high dissolved oxygen.  You can also attach CO2 to the hose barb and the venturi will split the CO2 bubble into microbubbles using the vacuum pressure from the venturi suction. Each venturi comes with multiple sizing plugs for the second outflow so you can dial in your preferred flow rate and amount of air.These plugs divert more water flow into the Venturi. This will increase the outflow speed of the water as well, if you prefer faster moving water. There is a small hose barb on the end of the air line. This acts as a silencer to help lower the overall air line suction sound to only 48 dBA. This is one of the quietest venturi on the market. Specifically designed for quiet operation. Tip:  A venturi will back flow water through the air hose if it ever gets clogged. So do not hang the air hose on the outside of the