• Monitor rate of CO₂ injection.
• Minimizes the visibility of CO₂ equipment in the aquarium.
• Suitable for all aquarium sizes.
• Simple and easy to use.

The Bubble Counter is a simple and elegant tool for monitoring the rate of CO₂ injection in planted aquaria. This bubble counter is placed in the CO₂ gas line, which minimizes visibility of CO₂ equipment in the aquascape while still allowing the hobbyist to easily check CO₂ output at any time.

Compatible with 6 mm (1/4") - Standard Airline Tubing.