1/2-Inch ULTRA Whip - Pre-Assembled (with Wires and Connectors) Non-Metallic Liquidtight Hook-Up Whip. 600-Volt. Two 10 Gauge Stranded Copper THHN/THWN Insulated Singles (Black and Red). Green Insulated Copper Grounding Conductor (also 10 Gauge Stranded Copper THHN/THWN) . Highly Flexible Non-metallic Conduit with Factory Installed Conductors. Liquidtight Flexible Non-metallic Conduit Type B (LFNC-B) Fittings (connectors included are one straight and one 90-Degree elbow). Intended for 208/240/480-Volt Single Phase Circuits. Ultra-Whip is a non-metallic conduit constructed with two different PVC materials that are extruded to form a highly flexible product designed especially for electrical applications.