The Ista glass CO2 diffusers are a handmade, elegant diffuser that will connect to the outlet of an external canister filter to allow effective dissolving of CO2 into the water column.These diffusers are available to suit either a 12mm or 16mm internal diameter hose. Please select the required option from the drop down menu when ordering.The diffuser has a large internal diffusing space, and uses the water flow to increase the CO2 dissolving rate. It has a built in diffuser and outlet pipe for your filter.Can be used on tank glass thickness between 5mm and 12mm.How to use:Connect canister filter outlet to the large glass pipe.Connect CO2 pipe to the small glass pipe.Use suction cups to stabilise the glass diffuser on the tank.Here is an installation and operating video from the manufacturer:https://youtu.be/90rsK3KjFjgIsta specialise in planted aquarium equipment and supplies, so you can be sure that this glass diffuser is one of the most advanced on the market and made to the highest possible quality.
