Fire Extinguisher Valve Material: Stainless Steel Pressure: 12-22MPa Capacity: 1kg, 2kg, 3kg, 4kg, 5kg, 8kg, 9kg etc Fire Extinguisher Valve Application: CO2 fire extinguishers, ABC powder fire ... extinguishers, water-based fire extinguishers, portable fire extinguishers. Capacity: 1kg, 2kg, 3kg ...