Upgrade a 2 Prong Outlet With a New GFI

Some old outlet boxes are jammed packed with wires but most will have enough room for the new GFI.

• Confirm you have enough room in the box for the new GFI by gently pushing the wires back in the box and test fitting the new GFI.
• If the GFI won't fit because there are too many wires in the box, you would have to install a new, larger electrical box which is beyond this Step-By-Step. If it does not fit safely, replace the old 2 prong outlet.
• If the GFI fits, then proceed to Step 5.