Fire Extinguisher, Purple K, Class BC, UL Rating 120B:C, Capacity 20 lb, Extinguish Agent Type Potassium Bicarbonate, Height 24 in, Diameter 7 in, Cylinder Material Steel, Operating Pressure 195 psi, Discharge Time 28 sec, Range Max. 21 ft, Bracket Included Wall, Valve Material Aluminum, Rechargeable Yes, Standards UL and US