2-Pack Air Stone Cylinder 4 x 2 Inch Micropore Design Mineral Bubble Diffuser for Hydroponics Air Pump

Item Feature:

Premium quality airstone diffuses water in every direction. A great way to properly aerate your hydroponic growing system.
Air stone cylinder produces fine bubbles for oxygen replacement, helps accelerate oxygen replenishment and release carbon dioxide build-up.
An ideal accessory for added aeration, circulation and decorative highlights. It creates a dazzling underwater scene while also increasing surface agitation.
Size: 4 x 2inch / 100 x 50mm (H x D). Fits for 4mm air tubing. Simply attach airline tubing to the air stone inlet and place it in desired location.

Note:

Please soak the air stones in water for about 30 minutes before usage.
If it doesn't have bubbles in one part, please change the air pump of higher power.
After a long-term use, clean your stone regularly so that it will be most effective.
Replacing the air stone every six months as they get clogged with dust, bacteria, and algae.