UnderGround Wire Connectors, Model 60® Gray/Gray, Box of 100

Gray-on-gray twist-on connector pre-filled with 100% silicone sealant for moisture-resistant, direct-burial splices. Supports copper conductors from 20 to 10AWG (0.64 to 2.59mm), rated 600V at 221°F (105°C), with expanding square-wire spring for secure connections.