Fluval Ceramic CO2 Diffuser Disk – Genuine Replacement
The Fluval Ceramic CO2 Replacement Diffuser Disc is a genuine replacement for the Fluval Ceramic CO2 Diffuser (17548). It is designed to efficiently dissolve carbon dioxide (CO2) into the aquarium water, supporting optimal plant growth and water chemistry.
Product Features
- Authentic replacement part for Fluval 17548 CO2 diffuser
- Provides consistent and even CO2 dissolution
- Constructed from high-quality ceramic material for durability
- Ensures stable gas transfer for aquatic plants
Specifications
| Item | Details |
|---|---|
| Model | 17548 |
| Material | Ceramic |
| Compatibility | Fluval Ceramic CO2 Diffuser (17548) |
| Function | CO2 dissolution in aquarium |
FAQ
Is this disc compatible with all Fluval CO2 diffusers?
This disc is specifically designed for the Fluval Ceramic CO2 Diffuser model 17548. It may not be compatible with other models.
How long does the disc last under normal aquarium conditions?
Please contact customer service for information on expected lifespan.
Does the disc require any special installation or tools?
No special tools are required. Simply insert the disc into the diffuser housing as per the original instructions.

Bella Payne –
I replaced my old diffuser disc with this one and noticed a more consistent CO2 release. My plants have grown stronger and the water chemistry has stabilized. Easy to install and fits perfectly.
Sarah Ball –
Works well with my existing setup. The ceramic material feels durable and the CO2 output is steady. No issues so far after two months of use.
Carolyn Wilkins –
This is the exact replacement part I needed. It fits without any modifications and improves the gas diffusion in my planted tank. Highly recommended for Fluval 17548 users.