All Paddle North inflatable products include a serial number. It begins with the prefix "PDN" and is followed by a unique alphanumerical sequence. Location varies by product and year it was manufactured. Here are the most common serial number locations:

• Inflatable Paddle Board: Fin Box or Side Rail
• Karve Kayaks: Side Rail (typically near the stern)
• Utility Docks: Side Rail
• All Other Inflatables: Side Rail