
Twinstar CO2 Diffuser
₹700 – ₹1,000
The WeekAqua Inline CO2 Atomizer connects to compatible aquarium filter tubing to disperse CO2 into the water flow. Its cylindrical atomizing core helps distribute CO2 through the filter return, keeping the diffuser inside the aquarium out of view. The quick-plug design makes connecting the unit straightforward, while its metal body is described as durable and crack resistant.
Choose the size that matches your filter hose: 12/16mm (13mm), 16/22mm (17mm) or 20/22mm (19mm). Check the hose dimensions before ordering to ensure a suitable fit. Install the atomizer inline on the filter tubing, connect your CO2 supply and check the connections for leaks before normal operation.
Inline CO2 diffuser for planted aquariums
Quick-plug connection type
Cylindrical atomizing core
Durable, crack-resistant metal body
Three hose-size variations available
Silver-grey finish
Disperse CO2 through your aquarium’s filter water flow with the WeekAqua Inline CO2 Atomizer. Its cylindrical atomizing core connects inline with compatible filter tubing, keeping the CO2 diffuser outside the aquarium. The quick-plug design supports convenient connections, and the metal body is designed for durability and resistance to cracking.
Select the variation that matches your filter hose dimensions. Available options are 12/16mm (13mm), 16/22mm (17mm) and 20/22mm (19mm). Confirm the tubing size on your filter before choosing a variation.
Brand: WeekAqua
Product type: Inline CO2 atomizer
Connection type: Quick plug
Atomizing core: Cylindrical
Body material: Metal
Colour: Silver grey
Listed weight: 0.21 kg
Listed dimensions: 9 × 12 × 19 cm
VariationListed hose sizeSmall12/16mm (13mm)Medium16/22mm (17mm)Large20/22mm (19mm)
Measure or confirm your filter hose size and select the matching variation.
Switch off the filter before opening or modifying the tubing.
Install the atomizer inline with the filter tubing, following the product’s connection design.
Connect the CO2 line to the atomizer’s quick-plug fitting.
Restart the filter and CO2 system, then inspect the connections for leaks and confirm water is flowing normally.
Adjust CO2 delivery according to your aquarium’s needs and monitor livestock and plant response.


Switch off the filter and CO2 supply before removing or servicing the atomizer.
Check the tubing connections periodically for leaks or looseness.
Inspect the atomizer and cylindrical core during routine aquarium maintenance.
Keep the filter hose and CO2 line free from kinks or blockages.
Use only the size variation that matches your tubing.
Delivery in 2-5 Days. Express delivery is available at checkout for an additional fee.
We accept returns within 3 days of delivery. Items must be unused and in their original packaging.
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