Photo 1 of ResOne Portable Aluminum Medical Oxygen Cylinder, B (M6) Size, with CGA-870 Toggle Valve for Medical Use - Non-Sparking, Green Dome, Brushed Finish, 5.7 cf, Ships Empty, Prescription Required to Fill

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Photo 1 of ResOne Portable Aluminum Medical Oxygen Cylinder, B (M6) Size, with CGA-870 Toggle Valve for Medical Use - Non-Sparking, Green Dome, Brushed Finish, 5.7 cf, Ships Empty, Prescription Required to FillPhoto 2 of ResOne Portable Aluminum Medical Oxygen Cylinder, B (M6) Size, with CGA-870 Toggle Valve for Medical Use - Non-Sparking, Green Dome, Brushed Finish, 5.7 cf, Ships Empty, Prescription Required to Fill