Designed for use with external filters with an internal pipe diameter of 12, 16 or 19mm, this external diffuser offers unprecedented CO2 dissolution rates of up to 100%. Thanks to such high dissolution levels less CO2 needs to be injected into the aquarium to maintain sufficient CO2 levels. Furthermore, because it is connected to the outlet pipe of an external filter, the CO2 is dissolved and mixed with the aquarium water before it reaches the aquarium. Not only does this improve the CO2 dissolution rate, it also vastly improves the clarity of the water as many of the bubbles are already dissolved into the water.
Requires working pressure of 35-40PSI.