Air-Vapor Barrier Box


  • Eliminates air leakage through electrical boxes
  • Prevents moisture damage in walls and ceilings
  • Improves comfort and energy efficiency
  • Easy to install
  • One size fits virtually all standard┬á single, double, triple and ceiling electrical boxes
  • Dimensions: 6 1/2″ x 7 1/2″ x 3″ deep
  • The LESSCO AVB Box works equally as well with membrane application or the Airtight Drywall Approach-ADA