Their all-natural limewood construction makes these air diffusers the ultimate choice for air-driven protein skimmers! Each diffuser is precisely hand-cut against the grain of the wood to allow the maximum production of super-fine bubbles, creating the ultimate in skimming efficiency.
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I really like the wooden air difusers – they seem to give off finer bubbles, which I prefer. They do deteriorate over time – so I replace them about every 6-8 weeks when I do a major water change/cleaning.