- Package includes: 200 red waterproof butt connectors for 22-16 AWG wire. - Tinned copper core: Heavy-duty copper core provides a strong crimp and higher conductivity. - Safe and simple to use: Insert the wires to be connected, crimp both sides with crimping pliers, and then heat with a heat gun for a strong, reliable joint. - 3:1 shrink ratio: Marine grade red butt connectors deliver high tensile strength and contain hot melt adhesive inside the tubing to ensure waterproof performance, preventing wires from slipping out. - Waterproof and durable: The combination of shrink tubing and adhesive seals out moisture for long-lasting connections in harsh environments. - Compatibility and material: Suitable for 22 to 16 AWG wires; tinned copper core, heat shrink tubing, and adhesive provide robust performance. - Practical applications: - Marine electrical systems on boats, ensuring watertight wire joins. - Automotive and trailer wiring repairs where moisture resistance is required. - Outdoor equipment and RV wiring, including power connections for grills, generators, and marine accessories. - Why choose these connectors: They combine a tinned copper core for reliable crimping and conductivity, a heat shrink seal for waterproofing, and a 3:1 shrink ratio to maintain a strong, secure fit in demanding environments.