Product name：3Spiro glass Co2 Diffuser
. The high efficiency of diffusing carbon dioxide.
. CO2 bubble counter is built in this device.
. Easy to install and use, with no extra power required.
. Suitable for tanks 15 - 50 gal (60L - 200L)
．Please soak this device in bleach water 15 minutes when its diffusion effect is lower than the new one.
．Rinse it with water and soak for 30 minutes. After that, atomizer will reach the normal function..