See more: Drop Checker
CO2 checkers allow you to monitor the CO2 level inside your aquarium. Handmade from the highest quality borosilicate glass, the CO2 checkers are an elegant addition to your planted aquarium.
| Article Code | Height (mm) | Item | - |
|---|---|---|---|
| 300-51 | 56 | - | - |
| 300-52 | 40 | DROP CHECKER | - |
| 300-53 | 52 | DOUBLE CHECKER | - |
