Non Dura-Link Cable Plug for All 4C OFFROAD Jacks OFFROAD Plug for Nexus style jacks, is used to keep the female Nexus jack sealed against water, dirt, and debris when disconnected from a flush jack mount. This plug is particularly beneficial when the vehicle is not in use or during cleaning. The aim is to keep your comms functioning efficiently. This plugin is recommended for use with jacks such as JM-S-FM-NXS, JM-D-FM-NXS, and JM-D-BM-NXS, where the Dura-Link skirt does not fit. The OFFROAD plug compatible with Dura-Link is #OFF-PLUG. Sold individually.