Description
Size: 4″ X 2″ X 2″. Standard ID airline tubing: 0.16″ / 4 mm. Features: The air stone produces lots of dense fine bubbles; The dissolved oxygen rate is high, which is a great way to oxygenate your hydroponic growing systems, ponds, aquariums and enliven the aquatic life. Durable Material: Made of Silicon Carbide and sintered at a high temperature; non-toxic materials are safe to your fish.
