Full Technical Description: Hub Type; Electrogalvanized Aluminum Acrylic Painted Feraloy Iron Alloy/Ductile Iron Material; Male, Female Connection Type; UL 1203, CSA C22.2 Approval; Class I Div 1 and 2 Group C D, Class II Div 1 and 2 Group E F G, Class III Enclosure; 3 Inch Trade Size; Vertical/Horizontal Mounting Position; 3-7/8 Inch Turning Radius; Constructional Feature Dustproof, Explosionproof, Ignitionproof; Material Electrogalvanized Aluminum Acrylic Painted Feraloy Iron Alloy/Steel (Plug), Electrogalvanized Steel (Nipple); Internal Volume 90 Cu Inch (Vertical/Horizontal); Size 6-1/2 Inch W X 8-5/8 Inch H; EZS Model