5-Port Clear Pre-Insulated Connector, 350 MCM – 10 AWG, Bag
https://dev.nsiindustries.com/product/5-port-clear-pre-insulated-connector-350-mcm-10-awg-bag/
Polaris Vision Tap Multi-Tap Connectors form secure connections between multiple conductors with a transparent rounded design and chemical-resistant insulation coating. Installs with a hex key and torque wrench, with no need for cover and taping.