Full-featured safety regulator with independent needle valve.
Designed specifically for aquarium use, the Pressure Regulator and Needle Valve are independent units connected by low-pressure CO2 tubing. The high precision flow valve is designed to be mounted on the side of the aquarium enabling easy access for regular flow adjustment or complete shut off.
The CO2 Cylinder/Regulator can be located out of site, behind or under the aquarium.
Easily upgradeable for automatic control with an in-line solenoid control valve.