Scanstrut SB-2G Junction Box Cable Seal - 2 Pack

The Scanstrut SB-2G Junction Box Cable Seal 2-Pack is an essential upgrade for any boater or marine electronics installer looking to maximize weatherproofing on deck-mounted systems. If you've run cables through junction boxes on your vessel—whether for GPS, fish finders, autopilot, or auxiliary systems—you know that water intrusion at cable entry points is one of the fastest ways to kill sensitive electronics. These cable seals transform a standard junction box into an IP67-rated waterproof enclosure, meeting the same ingress protection standard trusted by commercial marine operators and serious weekend anglers who demand reliability in saltwater or freshwater environments.

Each seal in this 2-pack screws directly into the cable entrance ports of your Scanstrut junction box, creating a watertight compression fitting that blocks spray, washdown, and submersion hazards up to IP67 standards. The threaded design ensures a secure mechanical lock that remains effective through vibration, thermal cycling, and years of sun exposure—critical on a boat where movement and temperature swings are constant. The seals accommodate various cable diameters and materials, making them compatible with standard marine-grade coaxial, Ethernet, and power cables commonly found in modern vessel electronics systems. Unlike tape-based seals or silicone sealants that degrade and require replacement, these screw-in units provide a permanent, reusable solution.

This 2-pack is ideal for boats with multiple junction box locations—helm station, engine room, and mast or antenna base installations all benefit from proper cable sealing. Installation is straightforward: simply unscrew the blank port covers on your existing SB-2G junction box and thread in the cable seals, then run your cables through them. The compact 4 x 2 x 6-inch sealed unit weighs only 0.1 lbs per pack, making it perfect for retrofit work without adding significant weight or complexity. Whether you're upgrading a center console, cruiser, or sailboat electronics system, these seals ensure your investment in marine technology stays protected from the elements for years to come.