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.Premium splice designed to connect and moisture seal an electrical connection for direct bury applications, rated up to 600V. 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.