Kidde FyrFyter 210D (4104000) Pindicator Disposable 2lb Fire Extinguisher Class (BC) With wall hook and one touch pressuer check device provides effective compact fire protection at affordable prices. These seamless aluminum cylinders have no welds so they wont leak. The dry chemical models in the line are not subject to costly 6-year recharge maintenance fees and have a life of 12-years. Disposable fire extingusishers do not meet commercial compliance codes.