Features:Cylinder with inbuild regulatorSeamless, Light Weight Cylinder ( 40% Lighter than steel cylinder)Easy to handleCorrosion Resistant interior and exterior wall surface.Non-MagneticNo Special Maintenance required, only require requalification every five years.The portable aluminum oxygen cylinders are widely used in home care environments, hospitals, Ambulance, and Emergency kits.Includes:ValvesRegulatorsMask – Nasal cannulaTrolleyDoes not include bagMaterialManufacture from High strength aluminum alloy 6061-T6