Review on 💧 Ultimate Black Plastic Waterproof Cable Connectors: Unmatched Protection and Connection Reliability by Andrew Schreider

They fit my needs perfectly. I built a portable power pack to take with me on the kayak to power the fish finder and light. I needed something waterproof to route the wires in the battery compartment and it fit the bill. They are great for waterproofing 6mm cables, allowing my cables to run through the box without letting water through. This particular pouch can be used for cables with a diameter of 4mm to 8mm, but other sizes are also available. They work like this: When you tighten a nut, the center of the nut narrows until it wraps around the cable, creating a watertight seal.