The MD Building Products 1 Gang Wall Plate Insulating Sealers (6-Pack) are constructed of foam and designed to save you money. The foam insulators help to reduce heating costs in the winter and cooling costs in the summer by preventing air leaks from electrical receptacles.
- Prevent air leaks through electrical receptacles to save energy
- Foam construction
- Fit standard 1-gang switch plates
- Invisible after installation
- Easy to install