AQUATOP 4" Round Airstone - Enhances Water Circulation & Oxygen Levels for Aquatic Life AS-04DSK

Easy to use Air Stone. Simply attach to air pump using airline tubing and place in your desired location within your aquarium. May be buried under gravel.

Features:
Increases surface agitation & oxygenation
Helps release carbon dioxide build-up
Fits standard airline tubing
For use in all aquariums