The Loop Nut Duct Plug provides a fast, secure, and tool-free seal for blank conduit in telecom, data center, and underground electrical installations. Its expanding thermoplastic elastomer gasket creates a water-, air-, and rodent-resistant barrier, while the durable, non-metallic body ensures long-term corrosion resistance. Featuring dual rope-tie points, the plug can be installed from either side of the conduit and is compatible with PVC, HDPE, EMT, and corrugated conduit types.