The agent in the cylinders is co2
A unit composed of three principal parts: one or more cylinders, containing gas under pressure and equipped with either manual or automatic release valves; a piping system to points of fire danger or to a hose reel; and a series of nozzles in piping system at points of fire danger or a hose with a nozzle and horn.
NSN 5999-01-644-7637
NSN 5935-01-599-8029
NSN 5895-01-492-5777
NSN 6150-01-429-0213
NSN 6620-00-546-6071
NSN 5935-00-119-9061
NSN 6620-01-451-3742
NSN 6135-00-284-1406
NSN 5965-01-396-7508
NSN 6645-01-489-0455
NSN 6145-01-370-7117
NSN 6145-01-592-3297