TE Connectivity Energy GPRT-350-8P(B6) Submersible Connector

Raychem GelPort connector, which is a type of electrical splice enclosure. The  part number, TE Connectivity Energy GPRT-350-8P(B6),  this product is manufactured by TE Connectivity.  It is suitable for both aluminum (AL) and copper (CU) conductors, with different specifications based on cap color (Black for 14-350 and Blue for 6-500).