UNS Micro CO2 Regulator KitDescription The UNS Micro CO2 Regulator Kit includes the regulator, solenoid and bubble counter conveniently packed into one box for your customers. All items work together seamlessly to provide planted aquariums with a reliable and efficient CO2 system. Pair the kit with the UNS Disposable Cartridge for a full nano freshwater planted tank CO2 setup. A great space saving solution for hobbyists that's effective and simple to use. Key Features Aluminum