Ancor 12-10 Gauge Heat Shrink Step-Down Multi-Wire Connectors - 25-Pack [320325]12 10 Gauge Heat Shrink Step Down Multi Wire Connectors 25 Pack Ancor's assortment of adhesive lined heat shrink butt connectors can be used as a step down from one gauge size to another or as a multi wire connector for one gauge size wire. These connectors offer a sealed alternative for products such as a quick tap or 3 way connector in areas where corrosion is a concern. Features: 4: 1 shrink ratio tubing to ensure a watertight seal between wires