The Duplex Zinc Die-Cast MC Cable Connector is designed for 1/2-inch knockout installations, providing a secure and concrete-tight connection when taped. Featuring a snap-in design with an internal spring steel clip, it quickly attaches to armored, metal-clad, HCF steel/aluminum cables, and flexible metal conduit. This UL and CSA-approved connector has a 3/8-inch trade size, fits cord sizes from 0.405 to 0.612 inches, and includes a duplex cable opening for multiple cables. Constructed from durable die-cast zinc with an insulated throat, it ensures long-lasting protection and easy installation.