JBL Proflora M500 Co2 Cylinder, Grey

CO2 storage cylinder for all CO2 systems. Supplies aquarium plants with their main nutrient carbon dioxide (CO2) while preventing algae TÜV-tested, refillable 500g CO2 reusable cylinder (thread W 21.8 x 1/14). With pressure relief valve for safety Does not stand on its own. Requires a stand (JBL PROFLORA CO2 CYLINDER STAND) or a wall mount (JBL PROFLORA CO2 CYLINDER WALLMOUNT) Because CO2 liquefies under pressure CO2 pressurised gas cylinders must be in an upright position when in operation Package contents: refillable cylinder, ready-filled with 500 g CO2, dimensions: 43 x 11 cm, thread W 21.8 x 1/14