• Combo Set Poly plugs for poly drums with BUTTRESS (Coarse threads) the other with 2" NPT (Fine Threads).  3/4" Knock Out NPT threads on both plugs.  Includes White EPDM gaskets suitable for most industrial chemicals and  FDA listed so it can be used with food products  or Buna seals for petroleum based products
           Our best selling Poly plugs.  These plugs are made of heavy weight material used by industrial suppliers.  

  • Choose quantity options
  • White EPDM gaskets or Buna gaskets in the following bundles:
  • 1 set of 2
  • 5 sets of 2
  • 25 sets of 2               

  • For use with poly drums
  • For tight head or closed top drums
  • Comes with gaskets
  • one BUTTRESS threads and the other with 2" NPT Threads
  • Both with 3/4" Knock Out NPT threads


Most Plastic 55 gal barrels have one coarse and one fine threaded bung.  

 These have a threaded center that you can remove the center to allow a spigot or pump to be installed.

We also have Drum bung plugs for steel and Plastic Barrels as well as Sealcaps 
See our Category  PETROLEUM EQUIPMENT 

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 Poly Plug PPNPS Fine Thread Bung Cap 2" w/ 3/4" Knock Out Gasket Poly Drum Bung (#401118991141)
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