OZ-Gedney Ground-Tite Type 4Q-FML Grounding Liquidtight Combination Coupling, Trade Size: 3/4 IN, Length: 1-7/16 IN, Flexibility: RMC And IMC, Malleable Iron Body And Nut, Steel Ferrule, Connection: FNPT Hub, Third Party Certification: UL File Number E-24264, CSA 009795, Applicable Third Party Standards: UL 467, CSA C22.2 No. 41, Federal Specification W-F-406E, NEMA : FB-1, Hazardous Locations: Class I, Division 2 per NEC 501.4(B), Class I, Zone 2 per NEC 505.15(C)(2), Class II, Division 1 per NEC 502.4(A)(1)(e), Class II, Division 2 per NEC 502.4(B)(2), Class III, Division 1 per NEC 503.3(A)(2), Class III, Division 2 per NEC 503.3(B), Intrinsically Safe per NEC 504.20, For Threaded Rigid Conduit And IMC