Full Technical Description: Hub, Drain Type; Electrogalvanized Aluminum Acrylic Painted Feraloy Iron Alloy/Ductile Iron Material; Female Threaded Connection Type; UL 1203, CSA C22.2 Approval; Class I Div 1 and 2 Group C D, Class II Div 1 and 2 Group F G, Class III Enclosure; 1-1/2 Inch Trade Size; Vertical Mounting Position; 2-11/16 Inch Turning Radius; Constructional Feature Explosionproof, Dust-Ignitionproof; Internal Volume 13 Cubic Inch; Includes Inspection Cover; Application Hazardous/Classified Location; Applicable Standard Nec/Cec; EZD Model