5-Port Clear Multi-Tap Pre-Insulated Connector, 4 AWG – 14 AWG
https://nsiindustries.com/product/5-port-clear-multi-tap-pre-insulated-connector-4-awg-14-awg/
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.