For monitoring proper dosage of CO2. Drop Checker is an original glassware unit, designed to indicate the CO2 amount diluted within the water

This is an adapter to connect CO2 System 74-YA Ver. 2 and SA regulator to the refillable CO2 tank.
*This is exclusively designed for ADA genuine CO2 System74-YA/Ver. 2 and SA. Includes a white internal seal.
 

(for CO2 Attache Regulator and CO2 Speed Regulator)

CO2 Beetle Counter is a CO2 bubble counter for large aquarium tank requiring a large supplementation. As CO2 bubbles rise in a spiral, you can easily count the number of CO2 bubbles. The design combines a playful sprit with practicality. Use with Cabochon Ruby enhances the appearance of the aquarium's exterior.

CO2 System 74-SA is the expert model with meter indicating CO2 discharge pressure. You can control the discharge pressure in a rage of 0-0.35MPa with easy-to-handle upper black dial. With SA regulator you can control the pressure depending on number of aquarium tank you are going to distribute.

CO2 Advance System includes all equipment required for CO2 supplementation including Pollen Glass Glass Counter CO2 System 74-YA/ver.2.