

IO Diffuser Replacement Ceramic Membrane
IO Diffuser Replacement Ceramic Membrane is designed for the easy reinstallation of the old membrane of our New IO Acrylic Series Diffuser and New IO Stainless Steel Series Diffuser.
Same-day dispatch on orders before 2 PM CET
Lifetime free technical support
Up to 10-year warranty
Free delivery on orders over $70

IO Diffuser Replacement Ceramic Membrane
Delivery, support, warranty and how to reach us — the short version. Every link opens the full page.
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Shipping
Free delivery on orders over $70. Orders placed before 2 PM CET usually ship the same day; regulators are assembled and tested first. Fully tracked express delivery: 2–5 business days in the US. Delivery details
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Support
Lifetime free technical support on every CO2Art product. Guides, manuals and a ticket form live in the support portal.
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FAQ
Cylinders and connections, bubble rates, drop checkers, what a dual-stage regulator does — the questions we hear most, answered. Read the FAQ
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Contact
Monday to Friday, 9:00–16:00 CET. We reply within one working day. Contact us
IO Diffuser Replacement Ceramic Membrane is designed for the easy reinstallation of the old membrane of our New IO Acrylic Series Diffuser and New IO Stainless Steel Series Diffuser. Or simply to have a spare t maintenance time
The possibility of replacing the ring allows the optimum performance of the IO diffusers for years of use.
The membrane is made with Nano CO2 Mist Technology providing you with the highest dissolution rates. Carbon dioxide passing through the porous ring is readily dissolved into aquarium water in the form of tiny bubbles because of the increased surface area. The IO diffuser optimises the amount of CO2 entering the aquarium for the most efficient absorption and less CO2 waste.
Depending on your IO diffuser size (and the tank size) you can choose between two options:
- Small for tanks below 40G
- Large for tanks above 40G
Shipping and delivery
Free delivery on orders over $70; otherwise $14.99 in the US and $24.99 for the rest of the world. Orders placed before 2 PM CET are usually processed the same day — a regulator may need a little longer, because every one is assembled and tested before it ships. Delivery is fully tracked: 2–5 business days in the US. Customs or import duties outside the US are charged on arrival. Shipping & returns
Warranty and lifetime support
The Advance Professional and Professional dual-stage regulators carry a warranty of up to 10 years; every other CO2Art product carries the standard 2-year manufacturer's warranty. All customers receive lifetime free online technical support. Warranty terms
Satisfaction guarantee
If you are not satisfied with the quality of a product within 30 days of purchase, we send a full refund or a replacement at no charge. Mechanical defects found during the first year are repaired, with any parts needed, at no cost to you. The guarantee
