Double walled chamber, Interior perforated basket and the doomed lid made of polished stainless steel. Argon are welded and exterior made of stainless steel sheetsCold rolled mild steel sheet finished in powder coating. The lid is tightened with wing nut locking system. Heating elements are immersion type heaters. The unit is fitted with neoprene rubber gasket to ensure tight sealing. All autoclaves are hydraulically tested up to 40 PSI as safety measure. Standard accessories supplied with S.S Basket, pressure gauge, steam release cock, spring loaded safety valve, cord and plug.