Precision Pro-Series Bubble Counter Kit Our innovative New Precision Bubble Counter Kit allows you to position the device depending on your personal needs! This useful device allows the user to estimate the amount of CO2 being injected into the tank by counting bubbles in the chamber per minute. It’s an absolute must-have for any aquarium with a pressurized CO2 System! Thanks to the additional adapter, the bubble counter can be installed directly onto the regulator or used inline. The bubble counter has an M10x1thread and is compatible with all CO2Art Regulators. For a safe and firm installation, the Bubble Counter Kit contains two high-quality suction cups to position the bubble counter on the outer side of the aquarium glass. The bubble counter is equipped with an integrated check valve thus it prevents the backflow flow of water into the regulator. Preventing it from damage. This excellent CO2 accessory is made of high-quality anti-corrosion metal, making it durable for years to come and always looking good. Bubble counter usage To install the bubble counter correctly, unscrew the cap (upper part) and fill the chamber with only water, then fasten the cap firmly. Secure the CO2 tube according to the inlet and outlet indication marks with the screw node. NB: Filling the bubble counter with other liquids is highly not recommended. Precision SS-Series Stainless Steel Bubble Counter Kit High-Quality Stainless Steel materials for most demanding customers! Our new SS-Series Stainless Steel bubble counter designed with an innovative solution; an additional adapter for the regulator installation M10x1 (compatible with all CO2Art regulators). The only bubble counter on the market for inline and regulator installation. Additional two suction cups for an easy outside tank installation. A must-have for any tank with CO2 injection, a bubble counter allows easy estimation of the CO2 injection rate by counting how many bubbles pass through the counter per minute.An integrated check valve prevents water from the bubble counter chamber from siphoning back into fragile and expensive CO2 equipment such as regulators and solenoids. Bubble counter useLose the cap ( upper part ) and fill the reservoir with clear water then fasten the cap firmly. Secure the CO2 pipe according to the inlet and outlet indication marks with the screw node.