Drum Closures or Bungs or Plugs are used to close the drum container opening. There are various types of drum closures available in the market. Drum closures / bungs are in standard sizes i.e 2 inch and 3/4 inch. Drum closures / bungs are in universal standard sizes i.e 2 inch and 3/4 inch, available in metal and plastic. Drum closures for HDPE drums is also available.