This aluminum alloy gas cylinder can be refilled with rare, high pure, calibration and special gases. Its breather has reasonable frame, simple operation, good quality and reliable property, owing to its small volume and light weight. It can be carried easily and refilled with large capacity of oxygen. It is an ideal appliance for first aid. Packing: nylon and carton water capacity:0.5 10L outer diameter:75 159mm working pressure:15MPa water test pressure:25MPa delivery time:30 45days payment way:30% T/T in advance package:cartons loading port:shanghai,china