Stainless steel CO2 diffusers hold up to years of submersion without the fogging or scratching that can affect acrylic or glass over time. The Dymax Stainless Steel CO2 Diffuser lineup covers two diameters and five lengths, so you can match diffusion capacity and reach to your specific tank.
Why Choose Stainless Steel
Where glass and acrylic diffusers can scratch, cloud, or crack over years of use and cleaning, a stainless steel diffuser resists all three while offering a durable, low-maintenance option for tanks running long-term CO2 injection.
Choosing Diameter and Length
| 24mm-D, 20cm-L | Standard tanks needing baseline reach and diffusion |
| 24mm-D, 30 / 35cm-L | Taller or more awkwardly-shaped tanks needing more reach |
| 36mm-D, 25 / 30 / 35cm-L | Larger tanks with bigger bioloads needing more diffusion surface area |
| 36mm-D, 40cm-L | The deepest or largest planted tanks needing maximum reach |
Installation Tips
- Choose diameter based on bioload and CO2 demand, and length based on how deep the diffuser needs to sit in your specific tank.
- Position under flow to help distribute fine bubbles rather than letting them rise in one column.
- Clean periodically to keep the diffusion surface clear of algae and mineral buildup.
The Dymax Stainless Steel CO2 Diffuser is available at Marine Concept Supply across all diameters and lengths — order online or pick up at our shop in Wheeling, IL. Shop 24mm/20cm, 24mm/30cm, 24mm/35cm, 36mm/25cm, 36mm/30cm, 36mm/35cm, or 36mm/40cm, and browse more CO2 & planted tank supplies.
