Hubbell S811CA steel cover for a 4" square electrical box with a 1.71" diameter opening (made by Raco for distribution by Hubbell, Raco part number is 811C). 1.71" opening is typically used for a 20A or 30A locking receptacle - please be sure to check the size of the opening that you need before ordering. Bulk packed loose with no individual packagaging or instructions.
