Explosionproof Conduit Union; Type Female/Female; Material Zinc Electroplated Chromate Epoxy Powder Coated Malleable Iron; Trade Size 3-1/2 Inch; Diameter 5.88 Inch; Length 3.38 Inch; Approval UL, CSA; Application Joining Conduit and Connecting Conduit to Enclosures, Permits Removal of Enclosures Without Turning or Removal of Conduit