“CO₂ Twist Counter”, a CO₂ Counter for large aquarium tanks corresponding to Pollen Glass Large and Pollen Glass Beetle will be released on Tuesday, February 15.
The CO₂ Twist Counter is an ADA’s classic glass CO₂ counter with a new structure in which slightly large air bubbles travel up while rotating in a spiral. In addition to its usability that enables us to count air bubbles easily even in a large aquarium tank with a large amount of added CO₂, the CO₂ Twist Counter gives a stylish impression around an aquarium tank with its innovative design and the fun movement of the air bubbles.
To grow aquatic plants in Nature Aquarium healthily and beautifully, please utilize our new product, CO₂ Twist Counter.

■CO₂ Twist Counter – Product Information
https://www.adana.co.jp/en/contents/products/na_co2/detail02.html#series-box5