ABB 3-1/2" Union conduit female grey

OCAL™ Double-coated conduit union can be installed in threaded thick-wall conduit systems in hazardous areas. Use UNF female union to connect conduit to conduit or to provide means for future modifications to the conduit system. Nominal 0.002 inch (2 mils) blue urethane on interior and exterior. Nominal 0.04 inch (40 mils) PVC coating bonded to exterior. Pressure-sealing sleeves protect connection. Explosion-proof, dust-ignition proof and suitable for use in many environments.