ISTA CO2 Diffuser (3 in 1) - Large

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These are the most practical diffusers available. Into a single piece, you have a check valve, a bubble counter and the diffuser. Also very important is that the ceramic plate can be replaced. 3 functions in one unit: CO2 bubble counter, check valve and diffuser. Produces bubbles as small as a mist of CO2, generating maximum possible diffusion on CO2 in the aquarium. Undisputable quality and reliability. Compact size. Easy to install. Use replacement ceramic item # IS00796 Show more