RAPID ACTION AFFF Foam Type (Stored Pressure) Fire Extinguisher 9 Liter. Capacity ISI Mark IS: 15683 operating temperature (+5) ºC to (+60) ºC for Class 4A & 144B type of fire filled with AFFF Foam Complete in all respect & 'A' & 'B' class fires - inflammable liquids, gaseous fires like L.P.G. and acetylene. RAPID ACTION AFFF foam based fire extinguishers are the most widely used fire extinguishers, filled with AFFF (Aqueous film forming foam) foam based, Suitable for all types of fire i.e. A & B started fire effectively extinguish by interrupting the chemical reaction of a fire triangle. Suitable for - apartments / crude oil ships / offices / oil shops / commercial, residential ; industrial buildings Purpose.