High Pressure Autoclaves (Vertical) (DIV-106) AUTOCLAVE DOUBLE DRUM (STERILIZER) VERTICAL WING NUT TYPE NON-ELECTRIC ELECTRIC Outer body made of thick mild steel finished with powder coating paint or S.S. The inner chamber is made of thick stainless steel. The lid is made of stainless steel & aluminum combined or full Stainless Steel. The instrument is absolutely pressure leak proof. The lid is tightened by Wing Nuts provided with pressure gauge, pressure release valve, safety valve, water level indicator. The autoclave can hold the pressure in between 5 to 20 PSI.