So far so good. Installed on a Dodge Sprinter. I lapped butyl tape and caulk to cover the screw heads and it held up very well from the outside in.
Pros
〖Suitable for 2-6mm cable〗Solar cable box for all kinds of cables with a diameter of 2mm² to 6mm². Ideal for routing cables when installing solar panels on vehicles and boats and other installations on buildings, garages, sheds etc.