Southwire Romex 10/2 NMW/G Wire vs Cerrowire 10/2 NM-B Cable with Ground

Both are 25 ft, 10-gauge, two-conductor solid copper NM cable for 30-amp residential circuits, and either will pass inspection in dry interior walls. The Southwire is sold as NMW/G with a 75°C PVC jacket and is the more common pick for new and replacement wiring in dwellings up to three floors above grade. The Cerrowire is NM-B with a 90°C insulation rating and SIMpull-style jacket that pulls through studs and conduit with less friction. Buy the Cerrowire if pulling through long or tight runs matters most; buy the Southwire if you want the most widely stocked, familiar roll.

• Choose the Southwire 25 ft. 10/2 if you want the standard NMW/G roll most hardware stores and electricians carry for dry interior branch circuits.
• Choose the Cerrowire 25 ft. 10/2 NM-B if you are fishing a long or tight run and want the slicker jacket and 90°C insulation rating.