![Marinco 15A 12 /3 Heavy-Duty Extension Cord - 50 [151250]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/marinco-15a-12-3-heavy-duty-extension-cord-50-151250.webp)
Description
15A 12/3 Heavy-Duty Extension Cord – 50′
Heavy-duty marine-grade cable withrobust, fully molded ends for use inharsh environments.
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Specifications:
- Amperage: 15a
- Length: 50′
- Type: Cordset
- Box Dimensions: 3″H x 7″W x 15″L WT: 6.95 lbs
- UPC: 093344064043
![Marinco 14 /3 Lighted Extension Cord - Non-Locking - 15A - 25' [150025NL]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/marinco-14-3-lighted-extension-cord-non-locking-15a-25-150025nl.webp)
![Marinco 6370CR 50Amp/125V Wire Dockside Receptacle [6370CR]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/marinco-6370cr-50amp-125v-wire-dockside-receptacle-6370cr.webp)
![Marinco 14 /3 Locking Extension Cord - 15A - 50' [150050]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/marinco-14-3-locking-extension-cord-15a-50-150050.webp)
![Marinco 50 AMP 125V Shore Power Cable - 75' - Yellow [6153SPP-75]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/marinco-50-amp-125v-shore-power-cable-75-yellow-6153spp-75.webp)
![Marinco 15A to 50A 125 /250V Pigtail Adapter [150SPP]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/marinco-15a-to-50a-125-250v-pigtail-adapter-150spp.webp)
![ASEA Power Systems 3.6 kVA Isolation Transformer [634003]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/asea-power-systems-3-6-kva-isolation-transformer-634003.webp)