Wooden limewood airstone, 75 x 15 x 15 mm (Hobby)
Wooden airstone made of limewood for air-driven protein skimmers and airlifts. Size (75 x 15 x 15 mm).
Wooden airstone for skimmers and other marine aquarium applications, are produced from fine limewood with very fine pores.
To keep the skimmer running at its optimum performance level, the ammount and size of bubbles should be monitored regularly.
We recommend you change the diffuser every 6 - 8 weeks. If you dry and sand lightly the airstone surface you can probably extend its life.