The Bridgeport 280SP 1/2-Inch Mighty-Merge® High-Quality Zinc Alloy EMT Combination Coupling designed to solve problems of coupling dissimilar systems is ideal for use with an EMT conduit. The coupling has a quick install snap-in end for ACMC Cables and 3/8-inch FMC and a set-screw end for 1/2-inch EMT. With an overall length of 1.93 inches and a 0.93-inch diameter, the patented coupling is solidly built to meet construction and general industry OSHA-recognized, NRTL-listed electrical standards, applicable Federal Specifications A-A-50553, NEMA Specification Standard FB-1 and the stringent bonding and grounding requirements of 514B cULus. 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.