Covers for Conduit Access Fitting Material Iron For Use With Appleton GRJ Series Outlet Boxes Includes Screws Connection Type Screw In Finish Chromate Coated Powder Coated Electroplated Accessory Type Cover Gasket Included No Hazardous Location Yes Hazardous Location Rating Class I Division 1 and 2 Groups C D Class II Division 1 and 2 Groups E F G Class III Fits Hub Size 2 1/8 in Series GRJ