The 3M™ connector insulator 8420 is a cold shrink insulator that provides you with extended strength and force as well as moisture-tight sealing. It offers great protection for high-voltage, air insulated connectors or lugs and allows you to easily insulate secondary splices and direct buried or submersible, dig-in repairs. Use it for all your solid dielectric insulated wire and cable splice jobs. This product is ansi certified and rohs 2011/65/EU Compliant.