Limewood diffusers produce the finest bubble for the most efficient protein skimming. Sadly like all airstones, wooden diffusers don't last in seawater so do change regularly to maintain performance.
** Please Note: This is the only wooden diffuser that fits the Marisys properly. Other diffusers will swell inside the protein skimmer and become difficult to remove.
◾ High Porousity for maximum airflow
◾ Two Airstones per pack
◾ Provides efficient protein molecule attraction
◾ Change every 4 weeks to maintain performance