Powershield™ Electrical Box Insert
SpecSeal® EP Powershield™ Electrical Box Inserts install within steel electrical boxes directly against the back of the box. Powershield™ Box inserts are equally suited for remediation as well as preinstallation before the boxes have made it to the job site. Powershield™ Box inserts incorporate pre-scored openings allowing for easy installation around ground lugs.
Tested in boxes up to 4-1/2 in. x 14 in. x 2-1/2 in.
Suitable for Steel and Plastic Face Plates
Easily preinstalls before shipping to the jobsite
Eliminates the need for Putty