...Lowe's does not seem to carry red and white THHN wire. I do see now that they have blue wire. But the electrical tape trick will work. It's something I've seen actual electricians do on my jobsites, usually to keep track of phasing in a 3-phase panel...they try to evenly balance the load in the panel across the three phases, so I've seen them wrap the ends of black B-phase and C-phase hot conductors with electrical tape inside the panel so they can keep things straight. The image below provides the color standards, and the link provides more information: ** Edited by MP4VT2004 at 1/22/2026, 8:27:08 AM