The Poly Plug™ offers a simple, reliable, and cost-effective solution for protecting open conduit and innerduct from weather, debris, and animal intrusion. Its tapered, scalloped wall design ensures a snug, snap-in fit that stays securely in place while remaining easy to install or remove by hand.no tools required. Molded from durable, flexible low-density polyethylene (LDPE), the Poly Plug™ resists impact, moisture, and extreme temperature changes for long-lasting performance. Each plug includes a built-in rope-tie feature for convenient line attachment, making it ideal for temporary sealing during installation or maintenance.