- Made of high-quality glass
- Enables you to monitor the supply of large amounts of CO2
- Highly suitable for aquascaping
- Visually very appealing
It is a CO2 bubble counter for large size aquariums. It has a practical and playful design, and the bubbles can be easily counted as CO2 rises in a spiral. It is designed to be used with Pollen Glass Large or Pollen Glass Beetle.