3M™ direct bury splice kits combine the quick, reliable connection of a 3M™ Performance Plus™ Wire Connector with the moisture resistance of a high impact, UV resistant tube prefilled with moisture resistant grease. It is UL listed for 600 V in direct bury applications. Premium splice designed to connect and moisture seal an electrical connection for direct bury applications, rated up to 600 V. Moisture resistant grease acts as a barrier for damp environments, reducing exposure to the elements in outdoor boxes and underground connections. Common uses golf course irrigation, landscape lighting, direct bury.