VIVOHOME Air Stones 4 x 2 Inch, Airstones Diffuser for Aquarium Fish Tank Hydroponics Pump, Pack of 2

Key features

• RELIABLE RESULTS - Effectively increase and circulate oxygen and nutrients while lowering CO2 levels in your aquarium or hydroponic growing system; Safe for fishes to live with
• UPGRADE YOUR GROWING - Made of environmentally-friendly and non-toxic mineral material, it can 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, suitable for 4mm/0.16" (Inner diameter) air tubing; It can be used with a high-output air pump for air circulation
• FINE BUBBLES - High-quality mineral material with micro-pore 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; Clean it with a brush if get clogged after weeks or months of usage