Scanstrut DSLP21AS Low Profile Cable Seal, Stainless Steel, fits 4-9mm cable

Low profile, 2.39" Diameter. Max connector size: 21mm (0.83")
Guarantees a 100% watertight IP68 installation. Featuring captive nuts to simplify assembly and allow for reliable repeat installations. Each unit is supplied with both pre-drilled and blank bungs, streamlining your setup process. Additionally, the convenient split-seal option means you won't need to remove the cable connector during installation. No messy sealant, ensuring a tidy finish. Perfect for solar panels, light bars, rooftop electronics, and more. Each cable seal is installed by using a hole saw keeping seal technology below the mounting surface.