Amerex 331 — 15 lb hand-portable carbon dioxide fire extinguisher, UL and ULC rated 10-B:C.
Carbon dioxide displaces oxygen, leaves no residue and is electrically non-conductive, so the 331 is reached for where a dry chemical discharge would ruin what it is meant to save. Unlike the 5 lb 322, it discharges through a hose and horn.
- Agent: carbon dioxide, 15 lb capacity
- UL and ULC rating: 10-B:C
- Discharge time 14.5 seconds; initial range 3–8 ft
- Height 30", width 12", depth 7"; shipping weight 37.75 lb
- Temperature range -22°F to 120°F
- Rust-free aluminum cylinder, all-metal valve
- Amerex lists a wall bracket as the included bracket for this model
This is the extinguisher itself, not a bracket. It is not the non-magnetic MRI model: 3-Tesla testing found the 331 hose substantially attracted to the magnet, and Amerex lists only the 5 lb 322NM as non-magnetic. CO2 units also carry a different hose, horn and cylinder service regime than dry chemical.
