3M Scotchlok UF Series Standard Splice Kits include all the accessories required to offer a reliable, moisture proof electrical connection for type UF B underground feeders. These kits are suitable to use on 600V rated, flat, non shielded UF cables.The Splice Kit UF Series consists of a connector insulation assembly and a heat shrink tube. The connector assembly contains four cylindrical set screw connectors separated by a piece of vinyl insulation. The heat shrink tube is a heavy wall, adhesive lined tube and is UL Listed and RoHS 2011/65/EU Compliant. It withstands a temperature range of 67 to 230 degrees F ( 55 to 110 degrees C).