Marinco 15A Heavy-Duty 50-Foot Extension Cord

The Marinco 15-Amp Heavy-Duty Extension Cord is 50 feet of 12/3 marine-grade cable with fully molded connector ends.

Twelve-gauge conductors are what separate this from a household extension cord of the same length and rating. A hardware-store cord at 50 feet is usually 16 or 14 gauge, and at 15 amps that drops enough voltage to make tools work harder and run hotter than they should.

Fully molded ends protect the terminations from strain and moisture, where a household cord relies on a clamped plug that eventually works loose. Around a dock that connection sits in salt spray and gets stepped on, which is a harder life than a garage cord ever sees.

Fifty feet reaches from a pedestal or a shed outlet to wherever the work actually is. It suits boat maintenance, battery chargers, tools and other 15A equipment rather than being a shore power cordset, which is a different specification entirely. Explore more shore power cordsets and cables.

• 12/3 marine cable, not 16 or 14 gauge
• Thin cord at 50 feet makes tools run hot
• Molded ends resist strain and salt spray
• For maintenance and tools, not shore power