Video Products Inc CAT5e Case Side Waterproof RJ45 Cap with Tether

This seals well, but beware the ring mount. If you torque the strap holding the cap on it can affect the seal on the bulkhead entry depending on how you installed it. I'd recommend some rigid plastics cement to ensure it doesn't rotate once installed.I'd also like to see this just included with the bulkhead mounts rather than sold separately, especially with the rubber ring and strap that mounts it.I'm considering driving pins and putting a small chain on the caps instead.

excellent

Gasket and tether material way too weak. Does what it says, but buy 3-4x what you need because you will break a lot of them

Cap works great on the matching cover. The rubber securing to the cab is a little flimsy. I will add a small fender washer a above pigtail to keep the small screw from pulling out.

A must to cover the out side RJ45 plug.