Fits 4/6mm (3/16" inner diameter ) CO2 proof tubing
Instructions:
1, Fill the main body 3/4 full of water (regular tap water is fine). 2, Determine the position of the foam counter and cut the CO2 tube to the length you want. (Make sure it is placed vertically) 3, Then connect the check valve with the CO2 tubing (pay attention to the air inlet and outlet direction); 4, Connect the CO2 Diffuser and CO2 system (CO2 generator or cylinder); 5,Use the stopwatch function of your mobile phone to count the number of bubbles in the bubble counter (For example, 31 bubbles in 30 seconds are about 1 bubble in 1 second.)
