Panduit, GCE250-250-Q, E-Tap Grounding Connectors, Series: StructuredGround, 1/0 AWG Minimum Run/Tap, 4/0 AWG Maximum Run/Tap, 1/2 to 5/8 in Rod, Specifications: PG25 Die Index, 3/8 to 1/2 in and 3 to 4 AWG Rebar, High Conductivity Copper, Black, 2.66 in H x 1.08 in W x 1 in L Dimensions