Feature:

\u25cfTwo function as CO2 bubble counter !#!amp!*!amp; check value in on unit
\u25cfApply to both internal or external use

Product Attributes:

Material:Plastic
Color:As the picture shown
Quantity: 1 Pcs

Package Include:

1 x CO2 Bubble Counter
1 x Suction cup

Note:

1.Due to the light and screen difference， the item's color may be slightly different from the pictures. Please understand. Make sure you don't mind before you bid.
2.Please allow 1-5mm differences due to manual measurement.