Engineered for versatility and efficiency, the Fast-Loc Loop Nut Duct Plug from ETCO Specialty Products is an essential solution for sealing smooth, ribbed, or corrugated ducts. Designed with a mechanical expansion seal, it effectively expands inside the conduit, ensuring a reliable fit, while its loop-nut design makes for easy hand tightening and removal. This reusable plug features an injection-molded PVC body, rendering it durable and lightweight, and comes equipped with a convenient rope loop and 1/2" rope tie, enhancing accessibility and practicality during use. With its proprietary ETCO-formulated polyurethane sealing gasket available in gray or black, this duct plug meets the demands of various applications while providing superior sealing performance in standard duct sizes.