Fluval Ceramic CO2 Diffuser Disc 3.1 oz (Replaces A7549 / 17548) Replacement Diffuser for Aquarium CO2 Systems

The Fluval Ceramic CO2 Diffuser Disc is a replacement ceramic disc for aquarium CO2 diffusers. A diffuser breaks injected CO2 into fine bubbles so it dissolves into the water, helping supply carbon to live aquarium plants. Replace the disc when bubbles become large or uneven, and clean the diffuser periodically as directed.

• Type: replacement ceramic diffuser disc
• Size: 3.1 oz
• For aquarium CO2 systems