Stainless steel electromagnetic regulator and solenoid valve allows simple and convenient aquarium CO2 injection. ISTA CO2 Controller (Vertical Type) boasts ease of installation and dispensation of carbon dioxide. Simple, no-tool installation onto standard CO2 cylinders offers the DIY aquarist freedom to create a custom system. Great for use with freshwater-planted aquariums, calcium reactors for saltwater reef aquariums or other CO2 injection systems.
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