VIVOHOME Air Stones 4 x 2 Inch, Cylinder Airstones Diffuser for Aquarium Fish Tank Hydroponics Pump, Pack of 2 - Product Features
- RELIABLE RESULTS - Effectively adds and circulates oxygen and nutrition while lowering CO2 levels in your aquarium or hydroponic growing system
- UPGRADE YOUR GROWING - Made from environmentally-friendly and non-toxic mineral material, extend the life of your nutrient solution, keep roots healthy, and invigorate your aquatic life without worrying about adverse effects
- PREMIUM SPECS - It's measured 4\" Height and 2\" Diameter, fits to 4mm/0.16\" (Inner diameter) air tubing; Can be used with a high-output air pump for air circulation
- FINE BUBBLES - High-quality mineral material with microvoid design makes an abundance of small bubbles for oxygen replacement
- MULTI-USE - Fit for hydroponic systems, ponds, aquariums, fish tanks, and other water-based systems; Simply attach airline tubing to the air stone and place it in the desired location