GPT marine hook-up wire (also known as GPTM or UL1426) is rated for up to 60V and 80°C (176°F) in wet environments. The overall diameters in this wire selection range from 0.092"–0.117" (18–14 AWG).
If you want a comprehensive comparison between GPTM and other wire types, view the Hook-Up Wire Data Chart on the Hook‑Up Wire tab of our Resources page.