A device for supplying fire suppressing agent to the interior of a container for an extended duration, the device comprising: a plurality of chambers configured to contain and selectively expel the fire suppressing agent; a puncture mechanism configured to puncture a container; a manifold in flow communication with the plurality of chambers and the puncture mechanism; and a controller configured to initiate expulsion of the fire suppressing agent from the chambers in a controlled manner; wherein the device is configured such that the fire suppressing agent is expelled from a first one of the plurality of chambers at a first time and is expelled from a second one of the plurality of chambers at a second time later than the first time; and wherein the puncture mechanism comprises: a conveyance tube; a puncture tip associated with the conveyance tube; and a pressure disk coupled to the puncture tip, the pressure disk being configured to transfer force from the fire suppressing agent after expulsion from the chambers to the puncture tip, thereby inducing the puncture tip to translate relative to the conveyance tube away from the manifold to puncture the container, wherein pressure disk comprises: an aperture; and a pressure plug received in the aperture, wherein the pressure plug is coupled to a pressure plug cable having a length shorter than a maximum distance that the puncture tip translates relative to the conveyance tube, such that the pressure plug is configured to separate from the aperture upon extension of the pressure plug cable, and place the manifold in flow communication with the interior of the container. a plurality of chambers configured to contain and selectively expel the fire suppressing agent; a puncture mechanism configured to puncture a container; a manifold in flow communication with the plurality of chambers and the puncture mechanism; and a controller configured to initiate expulsion of the fire suppressing agent from the chambers in a controlled manner; wherein the device is configured such that the fire suppressing agent is expelled from a first one of the plurality of chambers at a first time and is expelled from a second one of the plurality of chambers at a second time later than the first time; and wherein the puncture mechanism comprises: a conveyance tube; a puncture tip associated with the conveyance tube; and a pressure disk coupled to the puncture tip, the pressure disk being configured to transfer force from the fire suppressing agent after expulsion from the chambers to the puncture tip, thereby inducing the puncture tip to translate relative to the conveyance tube away from the manifold to puncture the container, wherein pressure disk comprises: an aperture; and a pressure plug received in the aperture, wherein the pressure plug is coupled to a pressure plug cable having a length shorter than a maximum distance that the puncture tip translates relative to the conveyance tube, such that the pressure plug is configured to separate from the aperture upon extension of the pressure plug cable, and place the manifold in flow communication with the interior of the container. a conveyance tube; a puncture tip associated with the conveyance tube; and a pressure disk coupled to the puncture tip, the pressure disk being configured to transfer force from the fire suppressing agent after expulsion from the chambers to the puncture tip, thereby inducing the puncture tip to translate relative to the conveyance tube away from the manifold to puncture the container, wherein pressure disk comprises: an aperture; and a pressure plug received in the aperture, wherein the pressure plug is coupled to a pressure plug cable having a length shorter than a maximum distance that the puncture tip translates relative to the conveyance tube, such that the pressure plug is configured to separate from the aperture upon extension of the pressure plug cable, and place the manifold in flow communication with the interior of the container. an aperture; and a pressure plug received in the aperture, wherein the pressure plug is coupled to a pressure plug cable having a length shorter than a maximum distance that the puncture tip translates relative to the conveyance tube, such that the pressure plug is configured to separate from the aperture upon extension of the pressure plug cable, and place the manifold in flow communication with the interior of the container.