Co2 Type Based Wheeled Fire Extinguisher 22.5 Kg (Refillable). Fire Type 'B'. Specification - Propellant As Per Clause 5.2 Of Is 16018: Carbon Dioxide (Co₂).Nominal Charge Of Co₂ Based Wheeled Fire E Xtinguisher: 22.5 Kg. Suitable For Class B Fires. Cylinder/Vessel Material: Seamless Manganese Steel, Confor Ming To Is 7285.Cylinder/Vessel Type: High-Pressure Cylinder (Service Pressure Exceeding 2.5 Mpa). [ Warr Anty Period: 30 Months After The Date Of Delivery ] ]