Hydor CO2 Green NRG Advanced

The Hydor aquarium CO2 systems are the easiest to to set up and easiest to maintain CO2 systems on the market. Everything except for a CO2 cartridge is included in the package.

Features:
Does not include the CO2 cartridge
For aquariums up to 132 gallons
Turbo Diffuser increases CO2 efficiency by 40% (compared to a normal CO2 diffuser)
High and low pressure gauges for perfect control
High precision pressure reducer for CO2 rechargeable cartridges
Special glass bubble counter for perfect visibility, regulation and control.