Primary Wire Mini Spool Primary Wire Merchandiser One price packaging for self-serve merchandising . Includes 60 spools of Primary wire in assorted colours and gauge sizes (35 SKUs in all) . Counter display rack holds 30 spools and is available at no charge with purchase of 668110 merchandiser. Primary Wire GPT Wire Techspan GPT (General Purpose Thermoplastic) primary single conductor wire is manufactured using 100% pure copper conductors with a PVC compound that resists chemical, abrasion and heat, up to 85°C (185°F) . Jacket surface is smooth enough for easy, clean wire stripping . Ideal for automotive, truck, trailers, tractor, boats, and other point-to-point, low voltage applications (up to 60 Volts) . Type GPT to SAE specification J1128 meets the standard for OEM or replacement applications for general purpose requirements .