Scanstrut Waterproof Cable Seal for Light Bars & Automotive Wiring / Marine Grade Cable Gland / Sold Singly For Cable Sizes: 2 - 8mm Maximum Connector Size: 16mm These new cable seals from Scanstrut are marine grade, heavy duty wiring glands that will not allow any water to enter your vehicle or cab where electrical cables enter. Originally designed for the marine industry these Scanstrut cable seals are perfect for use on trucks, camper vans, 4x4s and off-road vehicles where you need a 100% waterproof seal where electrical cables enter your vehicle. Watertight InstallationTapered bung forms a watertight seal. All units are supplied with a closed-cell base seal - 100% waterproof. All models have been IP68 tested and approved.Easy and Reliable InstallationCaptive nuts make for easy assembly and also allow reliable repeat installations. Each unit supplied with both pre-drilled and blank inner seals to make your installation as easy as possible. No Need to Remove Cable ConnectorsSplit-seal option does not require connector removal during install.Multi-Functional Dome ShapeThe aesthetic dome-shaped profile provides a stronger, impact-resistant design and outer dome provides additional water shield. >>> Click here to download the Scanstrut Installation Manual