21 30 00
Fire Pumps
21 24 16
Dry-Chemical Fire-Extinguishing Equipment
21 24 13
Dry-Chemical Fire-Extinguishing Piping
21 24 00
Dry-Chemical Fire-Extinguishing Systems
21 23 16
Wet-Chemical Fire-Extinguishing Equipment
21 23 13
Wet-Chemical Fire-Extinguishing Piping
21 23 00
Wet-Chemical Fire-Extinguishing Systems
21 22 16
Clean-Agent Fire-Extinguishing Equipment
21 22 13
Clean-Agent Fire-Extinguishing Piping
21 22 00
Clean-Agent Fire-Extinguishing Systems
21 21 16
Carbon-Dioxide Fire-Extinguishing Equipment
21 21 13.16
Low-Pressure, Carbon-Dioxide Fire-Extinguishing Systems
21 21 13.13
High-Pressure, Carbon-Dioxide Fire-Extinguishing Systems
21 21 13
Carbon-Dioxide Fire-Extinguishing Piping
21 21 00
Carbon-Dioxide Fire-Extinguishing Systems
21 20 00
Fire-Extinguishing Systems
21 16 00
Fire-Suppression Pressure Maintenance Pumps
21 13 39
Foam-Water Systems
21 13 36
Antifreeze Sprinkler Systems
21 13 29
Water Spray Fixed Systems