12-Pack Combo of 2" Bung Caps with 3/4" Knock Out - Includes 6 Fine NPT Thread Caps & 6 Coarse Buttress Thread Caps

12-Pack: Includes 6, 2" Fine Thread with 3/4" knock out and 6, 2" Coarse Thread with 3/4" NPT knock out for hoses or spigots.

Drum Accessory: These bung caps are for plugging the threaded bunghole at the top of poly drums and barrels.

For Tight Head or Closed Top Drums: Coarse thread fits (2.48") 63mm American Buttress thread plugs while the fine thread fits 2.48" (63mm) NPS thread plug.

Will Fit Most Poly Drums: The coarse buttress thread caps with included gasket will fit most 15, 30 and 55-gallon poly drums and barrels.