The Aquapro CO2 Bubble Counter is a durable, aluminum-alloy aquarium tool designed to precisely measure and monitor the CO₂ injection rate for live aquatic plants.

Key Features and Specifications:

• Construction: Made from high-quality aluminum alloy, providing clear bubble visibility and long-term durability compared to fragile glass alternatives.
• Safety Feature: Features an integrated built-in check valve to prevent aquarium water from backflowing into the expensive regulator or solenoid valve.
• Hose Compatibility: Designed to work seamlessly with standard aquarium airline or dedicated CO₂ hoses with a 4 mm internal / 6 mm external diameter.