Grace engineered products... Inside-Outlet® is unique because it has three GFCI-protected receptacles, two outside and one inside the panel. Additionally, this GFCI receptacle...s purpose is to provide companies a trouble-free step toward complying with NFPA 79, which states all externally-mounted utility receptacles must be GFCI protected and tested every 30 days. Accomplishing this directive is simple and time efficient with Inside-Outlet®. The non-GFCI outlets inside a panel can be wired through the Inside-Outlet®, which is then externally mounted on the panel door.
