This duct plug from CommScope is designed to provide a reliable sealing solution for openings ranging from 0.35 to 0.57 inches. Featuring an expandable twist nut, it ensures a snug fit within ducts from 1.12 to 1.26 inches in diameter. Crafted for simplicity and efficiency, this product serves as an essential component in pipe and conduit applications, effectively preventing debris from entering while maintaining the integrity of your systems. The straightforward installation process makes it a practical choice for both professionals and DIYers alike.