CO2 Drop-Checker Glass Carbon Dioxide Monitor CO2 for Planted Aquarium Fish for Tank Mini CO2 Detector with Su Aquarium Heater Light Thermometers Gravel Sand Decorations

CO2 Drop-Checker Glass Carbon Dioxide Monitor CO2 for Planted Aquarium Fish for Tank Mini CO2 Detector with Su aquarium heater light thermometers gravel sand decorations filter fish tank filter decorations light heater cleaner gravel fish tank stand decor stone ornaments rockery sponge wool aquarium supplies fish tank supplies
Features:
glass drop checker.
suction cups included.
glass drop check is about 6cm/2.36" in height.
Used to test and monitor the concentration of the aquarium water fish for tank.
Transparent.

Specifications:
Material: Glass
Size: app. 6cm/2.36" in height
Color: Transparent

Package Includes:
1 x glass drop checker

Note:
1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.
2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!