VIVOSUN Air Stone 4 x 2 Inch Large Air Stone Cylinder for Aquarium and Hydroponics Air Pump (1PCS 4 x 2 Inch)
[Product Information]
- Designed to add oxygen and circulate nutrition to your hydroponic growing system.
- Extend the life of your nutrient solution, keep roots healthy.
- Produce fine bubbles for oxygen replacement.
- Size: 4" X 2" X 2". Fits for 4mm inner diameter tube.
- Fit for hydroponic systems, ponds, aquariums or fish tanks and other systems.
