22-18 AWG Heat Shrink Butt Connector - 25 Pack. Butt splices are crimp connectors used to safely connect one or more wires to another wire. Step-down butt splices are meant to connect a higher-gauge wire to a lower-gauge wire or combine multiple smaller-gauge wires to a single conductor. Pacer TBSE18-25 connectors are made from tinned copper with heat-shrink insulation and epoxy lining to create an environmentally sealed connection when heated. Features include epoxy-lined heat shrink (provides superior water seal), tinned copper conductor, compatibility up to 600 volts, and operating temperature range -55°C to 125°C. Compliant with UL, CSA and RoHS standards. Benefits: impact resistant, multiple uses, long-term protection, and easy installation. Package qty: 25.