When the time comes to insulate your wires, you need our 3M 8420 Connector Insulator. Its cold shrink technology doesn't require heat to provide a secure fit, and it seals against moisture to maintain your installation's resiliency and pressure, making it a great choice for cable splices and solid dielectric insulated wires. This connector insulator is RoHS 2011/65/EU Compliant and ANSI Certified for use in applications such as insulating direct buried or submersible, dig-in repairs, secondary splices and physical protection of high-voltage, air-insulated connectors or lugs.