?Round surface and flat bottom make the stone place steady. Low oxygen consumption & high fusion rate.
?An ideal way to add oxygen and lower CO2 levels to your hydroponic, circulation system, fish tank and aquarium.
?Jetting Volume: 20 L/min, Recommended Air Pump Power: >4 W.
?Fits for 3/16" / 4 mm inner diameter tube. Measures 2.4" in Diameter by 2.4" Height.
?Please soak the air stones in water for >3 hours before usage.