CO2 bubble counters

With CO2 bubble counters you can measure the amount of added CO2. It is important to be able to check the added CO2 because it also reveals deviations due to defective regulators or valves. The bubble counters are attached in line to the CO2 hose and are attached to the outside of the aquarium

Red Sea Compact CO2 bubble counter

CO2 bubble counter with built-in non-return valve

Aqua Medic bubble counter plus

Bubble counter for use with CO2 systems for the supply of aquatic plants ....