Cooper Crouse-Hinds Conduit expansion joint is constructed from steel/phosphor bronze/copper-free aluminum for durability. It has conduit size of 2 inches. It measures 4.750 Inch outer diameter x 8.250 Inch. It comes with internal ground connection. It can be maintained without requiring external bonding jumper up to 24 inches and clamps. Expansion joint can couple two sections of conduit subject for longitudinal movement. It offers cross structural joints. Expansion joint is used to prevent conduit from buckling and ensuing circuit failures. It is compatible with rigid metal conduit and IMC.Expansion joint permits linear movement caused by thermal expansion and contraction in a long conduit runs. It can facilitate expansion in both indoor and outdoor environments. Expansion joint prevents damage to conduit supports such as in a building/on a bridge. Expansion joint has maximum movement of 4 inches. It includes optional redundant visible grounding strap. It is ideal for wet locations. Expansion joint meets UL/CSA/NEMA standards. Also known as -Crouse-Hinds XJG64 Expansion Joint Coupling 2 Inch Steel