promotion ISTA Precise CO2 Pressure Regulator I-590 for plant aquarium

promotion ISTA Precise CO2 Pressure Regulator I-590 for plant aquarium

1.Air tighten design. Easy assembling, no tool required in fastening to the CO2 cylinder.

2.Most precise processing of the control needle valve to assure most reliable and accurate CO2 dosing.

3.Pressure reduced design to provide most stable and reliable pressure out put.

• Fasten the CO2 out let of the pressure regulator to a complete closed position then fasten the pressure regulator to the CO2 cylinder firmly by hand.
• Turn and release the on/off valve of the CO2 cylinder until pressure gauge activate.

• Turn to close the on/off valve of the CO2 cylinder completely. Next turn to release all the remaining CO2 inside the pressure regulator completely ( until the pressure gauge shows 0 pressure ). Then simply loose the pressure regulator from the CO2 cylinder.