Choose the versatile 3M™ Scotchlok™ color coded Heat Shrink Butt Connector for your next installation. The see-through pre-insulated tubing that covers this connector's seamless barrel helps provide resistance to salt, corrosion, water and other contaminants once you crimp and shrink it. Use the color-coding to identify what wire size you need, then rely on its electrolytic copper to provide excellent conductivity. The heat shrink tubing fits securely while providing strain relief and great pullout strength. This product is UL Listed, CSA Certified and RoHS 2011/65/EU Compliant.