JBL ProFlora CO2 Cylinder 500U Recyclable disposable storage cylinder ready-filled with 500 g CO2 CO2 storage cylinder for all CO2 systems. Supplies aquarium plants with their main nutrient carbon dioxide (CO2) while preventing algae Easy to install: turn the pressure regulator with internal thread onto the external thread (M10x1) of the storage cylinders Including mounted rubber stand for good stability.
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