Agentwater; potassium carbonate; urea Cylindermaterialcarbon steel Valve materialcopper with nickel plating Fire rating1a 55b (china standard) Fire typea&b Working distance 3.9m Working time73.4s Driving gas nitrogen Temperature edurable -20~+55 Working pressure1.2mpa(+20) Test pressure2.1mpa Capacity6l(-5% allowed) Net weight10.37kg± 5% Single size( dia *height)16.2cm*54cm Gross weight11.04kg± 5% (with carton) Carton size 54.5cm*22.5cm*21cm Life span3 years Certificatece, iso9001 Standardgb4351.1-2005