The Bridgeport 1124-AL 1-1/4-Inch Three-Piece Aluminum Conduit Coupling is your quick-connect solution to join two lengths of threaded rigid or IMC conduit. The plain-finish aluminum coupling provides the underlying insulation system from weather and physical damage. It is lightweight, easy to install and corrosion resistant. With an overall length of 1-7/8 inches and a 2-1/4-inch diameter, the coupling is solidly built to meet construction and general industry OSHA-recognized, NRTL-listed electrical standards, the stringent bonding and grounding requirements of 514B cULus and to be RoHS compliant. Bridgeport's wide selection of products is manufactured for innovation, consistency and quality — providing you with connectors, couplings, or transition fittings that are safety listed, ensuring code compliance to meet your needs enabling you to do your best work at a lower total cost. We build every product with the same goal in mind: guaranteeing a fast, professional-grade, trouble-free installation. When you need a solution you can depend on, be sure to look for Bridgeport Orange.