Elsa Spring-10-B. Positive pressure, 10 minute escape BA, c/w orange bag mounted 2 litre, 200bar aluminium cylinder, automatic positive pressure demand valve & neoprene face mask. Weight 4.5kg. Allows refilled cylinders to be fitted on site. * (Duration calculated using an average consumption rate of 40Litres per minute). Please specify whether cylinders are to be supplied FULL or EMPTY. Charged cylinders are classed as hazardous goods & may not be sent via certain types of carriage, please ch