Penn Plax Aqua-Mist Cylinder Airstone - 7/16" Long Airstone (4 Pack)

The Penn-Plax Aqua-Mist Air Stone cylinder creates a dazzling underwater scene. Increases surface agitation, accelerates oxygen replenishment and helps release carbon dioxide build-up. Increases surface agitation. Accelerates oxygen replenishment. Helps release carbon dioxide buildup.

Dimensions: 7/16" Long (1 cm)