The ETCO Fast-Loc Loop Nut Duct Plug offers a reliable solution for sealing duct systems within a nominal size of 2 inches and accommodates an expansion range of 1.83 to 2.36 inches. Its innovative loop-nut design simplifies hand tightening and removal, additionally providing a secure attachment point for a rope, which is included for added convenience. Crafted from durable injection-molded PVC, the non-metallic plug body is complemented by an ETCO-formulated polyurethane sealing gasket available in gray or black, ensuring an effective seal across smooth, ribbed, or corrugated duct surfaces. This reusable fastening mechanism, characterized by its mechanical expansion seal, is specifically designed to expand within conduits and inner ducts, making it an essential component for maintaining the integrity of duct systems while allowing for easy installation and removal.