Screw-On Vapor Box (Round) -20 Pack



  • $159.89
    Unit price per 

UL Listed Made in USA


Screw-On Vapor Box

Our screw-on vapor box is a non-metallic vapor box that flanges with gaskets attached that form a protective barrier against air infiltration, enabling installers to meet local codes where required.

Fast, easy, secure installation in new construction, our vapor boxes mount to wood or steel joists with screws that ship captive.



  • Non-metallic, non-conductive
  • Available in round for fixtures, and for devices in single-gang, two-gang, three-gang, and four-gang styles
  • Ships with mounting screws or captive nails (on facing page)
  • Includes gasket material for sealing knockouts
  • For new construction with single or double drywall (two-hour fire rating)
  • UL Listed in US and Canada

What's in the Box

What's in the Box

20 Pack - Round Screw-On Vapor Boxes For Fans or Fixtures