Hailea VolumeAir 4" (100mm) Flat Circular Airstone:
This quality air stone is ideal for Hydroponic nutrient tanks, aquariums or general applications.
- 4 Inch diameter airstone will fit into any nutrient tank
- Porous stone creates many small bubbles
- Mixes and oxygenates your nutrient solution
- Oxygenated nutrient solution improves root-health and turbo-charges plant growth