9 Litre Water Fire Extinguisher. Quality kitemark certified to BS EN3. Stored pressure water fire extinguisher suitable for use on class A fires involving wood, paper textiles and other class A risks in offices and commercial premises. 21A fire rating. Capacity: 9 Litres. Fire Rating: 21A. Operating Temperature: +5 to +60 degrees centigrade. Discharge Time: 79 secs. Weight: 16.2kg, Height: 565mm, Width : 225mm.