Electrical box penetrations in walls can represent a source of uncontrolled air infiltration. These rigid plastic insulated electric switch covers have a pre-installed foam gasket on the back side, resulting in little, if any, uncontrolled air infiltration. This model is for use with standard toggle wall switches in double-gang electrical boxes.
The utilities & energy efficiency providers below work with EFI to extend discounts through EFI online stores. Offers are grouped by those for residential customers and this for non-residential customers.