Rectangular Steam Sterilizer with Analogue Display has stainless steel, triple walled construction and has positive radial self-locking safety doors. The Sterilizer has the feature that the sterilizing cycle is controlled by means of multi-port valve and can withstand 2.5 times the working pressure. The Sterilizer is sealed with neoprene/ silicon long lasting and durable gasket and has analogue display for jacket and chamber pressure and temperature. The Rectangular Steam Sterilizer with Analogue Display has outer jacket that is insulated to prevent heat loss and is mounted on tubular mild steel frame with ground levelling flanges.