Fluval BIO CO2 500 Diffuser

Fluval BIO CO2 500 DiffuserRoutine disc replacement is common in a CO2 system and should be switched out every few months to maintain optimal carbon dioxide delivery.FeaturesMade of a clear, durable acrylicHigh-quality ceramic disc creates an ultra-fine mist for optimized solubility and plant absorptionAvailable in 3 sizes to suit most aquariumsWhats IncludedDiffuser and 2 suction cups