Aquatop In-line CO2 Diffuser for Canister Filters Black, Green, Silver – Pets Go Here
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Aquatop In-line CO2 Diffuser for Canister Filters Black, Green, Silver 1ea

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The Aquatop In-line CO2 Diffuser efficiently delivers CO2 into large or high flow aquariums. Made from a durable plastic, the IL-CO2 is easy to install and works in-line with your canister filter tubing. The highly porous ceramic atomizer diffuses CO2 so that it can be readily dissolved into the water column, increasing the saturation of CO2 which is then easily absorbed by live plants.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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