Abstract: An electrical box assembly includes an electrical box structure including an interior defined by a plurality of walls with an aperture formed through one of the walls for providing access to the interior of the box structure. An aperture cover extends over the aperture. The aperture is formed from a resiliently flexible material and includes a slit forming feature for prescribing a location of a slit for selectively providing access to the interior of the electrical box structure. The resiliency of the aperture cover urges the aperture cover to a closed position of the slit to minimize air passage through the aperture cover.

Abstract: An electrical box including a flange produced utilizing a 2-shot molding process and provided as a unitary structure. The flange has a first surface and a second surface, wherein the first surface and the second surface are substantially co-planar, spaced apart, and generally parallel to a plane defined by an open end of the electrical box when the electrical box is installed into a corresponding wall structure. The flange is self-supporting and flexible to accommodate dimensional and alignment irregularities in a mounting surface. Each of a plurality of knock outs formed in the electrical box has a slit formed therein that retains passed-through cables, as well as closes and returns to an original undisturbed position when the cables are removed to maintain substantially air tight conditions.

Abstract: An electrical box assembly includes an electrical box structure including an interior defined by a plurality of walls with an aperture formed through one of the walls for providing access to the interior of the box structure. An aperture cover extends over the aperture. The aperture is formed from a resiliently flexible material and includes a slit forming feature for prescribing a location of a slit for selectively providing access to the interior of the electrical box structure. The resiliency of the aperture cover urges the aperture cover to a closed position of the slit to minimize air passage through the aperture cover.

Abstract: An electrical box including a flange produced utilizing a 2-shot molding process and provided as a unitary structure. The flange has a first surface and a second surface, wherein the first surface and the second surface are substantially co-planar, spaced apart, and generally parallel to a plane defined by an open end of the electrical box when the electrical box is installed into a corresponding wall structure. The flange is self-supporting and flexible to accommodate dimensional and alignment irregularities in a mounting surface. Each of a plurality of knock outs formed in the electrical box has a slit formed therein that retains passed-through cables, as well as closes and returns to an original undisturbed position when the cables are removed to maintain substantially air tight conditions.