Deep Blue Professional ADB12101 High Performance Air Stone for Aquarium, 4-Inch Bar

Durable air stone diffuses water in every direction

Assists in release of carbon dioxide build-up

Accelerates oxygen replenishment

This is an ideal accessory for added aeration, circulation and decorative highlights. It creates a dazzling underwater scene while also increasing surface agitation. All you have to do is attach the airline tubing to the air stone inlet and place it in desired location.
Brand: Deep Blue Professional, Model: 894060, Color: blue, Size: 4 inch Bar