TETRA airstone AS25

The TETRA Airstone is high porosity that allows diffusing air into aquarium water.
High production quality for longer life.
Produces even flow of fine bubbles for efficient oxygenation of aquarium water.
Simply push airline onto air stone. Position at base of aquarium for maximum oxygenation of water. Use a non-return valve to stop any water coming back up the pipe to the pump.