Ista Glass CO2 Diffuser External Filter Outlet
The Ista glass CO2 diffusers are handmade, an elegant diffuser that will connect to the outlet of an external canister filter to allow the effective dissolving of CO2 into the water column.
Simply connects to the canister filter outlet tubing, replacing the original filter outlet.
These diffusers are available to suit either a 12mm or 16mm internal diameter hose.
This model fits in line with the return pipe of the external filter. A piece of 4/6mm CO2 proof hose from the CO2 fertilization system is then attached to the base of the unit. As the water passes, the CO2 dissolves into the water.
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