Air-Vapor Barrier Box

New and Improved!

The new, improved LESSCO Air-Vapor Barrier Box has incorporated a unique “hinge” feature. In the past, certain electrical sidewall and ceiling boxes were difficult or impossible to use with the LESSCO AVB Box. The new, unique hinge design makes virtually all standard single, double, triple and ceiling electrical boxes compatible with the new and improved LESSCO AVB Box.

And you can now use the LESSCO AVB Box to air seal your LED recessed ceiling lights!

Hinged air vapor barrier box