Tremendous firepower. Model 361 meets NFPA recommendations for combi and cargo aircraft use. Halon is a "Clean Agent" – a gaseous fire extinguishant that does not leave a residue. Halon is extraordinarily effective in putting out flammable liquid and electrical fires. As a liquefied gas, Halon is able to effectively fight hard to reach fires by chemically disrupting combustion. Model 361 requires optional bracket 810 for use on aircraft.