The GFC34 fuel cell is designed to operate with the GCN-MEPMAG and GCNMEP,and with many major-brand gas-actuated concrete-nailer tools. The fuel cell provides 1,200 shots and can operate at temperatures between 20 deg and 120 degF ("6 deg"49 degC). The fuel cells are offered individually or in a two-per-pack clamshell. Additionally, one fuel cell is included with each pack of 1,000 pins.