Conduit Reducing Bushing; Large End Trade Size 4 Inch; Small End Trade Size 2 Inch; Enclosure Class I Div 1 and 2 Group A B, Class II Div 1 Group E F G, Class II Div 2 Group F G, Class III; Material Electrogalvanized and Aluminum Acrylic Painted Feraloy Iron Alloy; Approval UL 1203, CSA C22.2; Used On Threaded Heavy Wall Conduit System