Surfing for the best air-sealed electrical box? Alliedmoulded.com The boxes are made of plastic and feature a gasket flange on the face with self-sealing gaskets where the wires pass through. When the vapor barrier is installed over the wall and the drywall is installed, the drywall traps the vapor barrier against the gasket, resulting in an airtight electrical box. Visit our site, for more information.
Air sealed electrical box