Brand new glass drop checker. Suction cups included. Solution is not included in this listing. Size : 3cm diameter. Instruction : Simply add couple drops of test solution and water into the checker. Stick the checker on the edge of the aquarium. Ensure water level cover the opening of the checker.
T**E
Stick to the old school drop checker. They're more ...
Stick to the old school drop checker . They're more accurate and way easier to change the fluid .
N**
Five Stars
Great quality. About the size of a golf ball. Suction cup works well.
Trustpilot
1 week ago
1 day ago
