Fish Tank Aquarium Air Stone Oxygen Aerator

Features:
Ozone aerated stone, bubble stone, using super hard gold steel sand, after high temperature sintering, good gas diffusion, good
filterability, ozone resistance, corrosion.
Increase oxygen levels, lower CO2 and raise PH, creates water currents
It is an important instrument to successfully keep aquatic fish for respiration process.
Durable, can be reused and washed repeatedly.
Creates bubbles in fish tank while attached to an air pump(air pump and air tube is not included).
Specifications:
Color: White, Grey
Material: hard gold steel sand
Item Size: Approx. dia. 3.5cm, dia. 5cm, dia. 8cm, dia 10cm, dia 15cm, dia 20cm