Efficiently dissolves CO2 into aquarium waterThis fully adjustable, power driven, super compact CO2 reactor will simply and efficiently maintain the desired level of CO2 in a wide range of planted aquariums, The turbulent Flow CO2/water interface inside the reactor ensures almost complete dissolving of available CO2 while non-dissolvable gases are gently vented to the water surface, Highly effective vortex reaction chamber Adjustable Flow 250 l/h (65 gal/h) pump Super compact design 9, 5 x 4 x 5, 5 cm Dissolves CO2 at Flow rates of up to 180 bubbles per minute Suitable for planted aquariums 40 to 500 Liters, SKU: RYLHC4621