* Fired at very high temperature (1300°C) to create a very strong and long lasting air stone.
* Uniform size pores produce even airflow and superior oxygenation.
* Does not corrode or dissolve like sand air stones.
* Structurally sound and impact resistant.
* Requires less air pressure for proper operation.
* Can be used in freshwater or salt water.
* Reusable with proper maintenance.