---
product_id: 46242473
title: "FIRMERST 14 Gauge 6 Feet Flat Plug Extension Cord, UL Listed, Black"
brand: "firmerst"
price: "¥4357"
currency: JPY
in_stock: true
category: "Firmerst"
url: https://www.desertcart.jp/products/46242473-firmerst-14-gauge-6-feet-flat-plug-extension-cord-ul
store_origin: JP
region: Japan
---

# 6 feet length for versatile reach 14 AWG heavy-duty gauge Slim flat plug design FIRMERST 14 Gauge 6 Feet Flat Plug Extension Cord, UL Listed, Black

**Brand:** firmerst
**Price:** ¥4357
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up your space without the clutter!

## Quick Answers

- **What is this?** FIRMERST 14 Gauge 6 Feet Flat Plug Extension Cord, UL Listed, Black by firmerst
- **How much does it cost?** ¥4357 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/46242473-firmerst-14-gauge-6-feet-flat-plug-extension-cord-ul)

## Best For

- firmerst enthusiasts

## Why This Product

- Trusted firmerst brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Setup:** Plug-and-play design makes installation quick and hassle-free
- • **Space-Savvy Design:** Flat plug fits tight spaces, letting you push furniture closer to the wall
- • **Powerhouse Performance:** Handles up to 15 amps and 1875 watts for reliable heavy-duty use
- • **Universal Compatibility:** Standard NEMA 5-15 three-prong plug works with most household devices
- • **Durability You Can Trust:** Thicker 14-gauge wire reduces heat buildup and boosts safety

## Overview

The FIRMERST 14 Gauge 6 Feet Flat Plug Extension Cord is a UL-listed, heavy-duty extension cord designed for indoor use. Featuring a robust 14 AWG wire gauge, it supports up to 15 amps and 1875 watts, ensuring safe and reliable power delivery. Its slim flat plug design allows for space-saving placement behind furniture or tight spots, while the standard NEMA 5-15 three-prong plug guarantees compatibility with most household and office devices.

## Description

FIRMERST 14 Gauge 6 Feet Flat Plug Extension Cord, UL Listed, Black - desertcart.com

## Features

- 6 Feet Flat Plug Extension Cord: 14/3 Gauge, 1875 Watts 15 amps, 125 volt
- Heavy Duty: 14 AWG (15A) extension cords with thicker wire diameters, which can handle more amperage and thus more wattage, less chance of getting hot, be safer and more reliable compared with the thinner 16 AWG ones
- Space Efficient: Convert your standard AC power cord to a slim flat plug, providing angular flexibility. Plug into the top outlet and still have usage of the bottom outlet with this flat plug cord
- Flat Plug: Designed for outlet at tight spaces like behind furniture, bookshelves, desks or anything which is close to the wall not allowing you to use the standard Plug. Save a lot of space,move furniture closer to the wall without bending the cord
- NEMA 5-15 Plug: The standard three-prong plug in North America, suitable for most household and office electrical devices. Supports up to 15A current with a maximum power rating of 1875 watts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0716NPFSK |
| Amperage | 15 A |
| Best Sellers Rank | #16,566 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #192 in Extension Cords |
| Brand | FIRMERST |
| Color | Black |
| Connector Gender | Male-to-Female |
| Customer Reviews | 4.8 4.8 out of 5 stars (10,744) |
| Ethernet Cable Category | Cat 1 |
| Gauge | 14 |
| Indoor Outdoor Usage | Indoor |
| Input Current | 15 A |
| Item Length | 72 inches |
| Item Weight | 0.3 kg |
| Manufacturer | FIRMERST |
| Mfr Part Number | 1PCS6FT14BLK |
| Model Number | XR-303G, XR-502, SJT |
| Number Of Conductors | 3 |
| Number of Items | 1 |
| Number of Outlets | 1 |
| Number of Packs | 1 |
| Plug Type | Type B |
| Power Cord Prong Count | 3 |
| Special Features | Easy to Install |
| UPC | 602638909351 |
| Unit Count | 6 Feet |
| Voltage | 125 volts_of_alternating_current |
| Warranty Description | 1 Year Manufacturer |
| Water Resistance Level | Not Water Resistant |
| Wattage | 1875 watts |

## Product Details

- **Brand:** FIRMERST
- **Color:** Black
- **Connector Gender:** Male-to-Female
- **Plug Format:** Type B
- **Voltage:** 125 volts_of_alternating_current

## Images

![FIRMERST 14 Gauge 6 Feet Flat Plug Extension Cord, UL Listed, Black - Image 1](https://m.media-amazon.com/images/I/51EESew7QxL.jpg)

## Available Options

This product comes in different **Color, Item Package Quantity** options.

## Questions & Answers

**Q: Can it handle high-wattage appliances?**
A: This extension cord is rated for up to 15A, 125V, and 1875W. It can power many household electronics and appliances within this rating. Always check your device’s power requirements before use.

**Q: Can I use this extension cord for outdoor applications?**
A: This SJT extension cord is designed for indoor use. It is suitable for household electronics, appliances, office equipment, and other indoor power applications. Do not expose the cord to rain, moisture, or outdoor weather conditions.

**Q: Why choose a flat plug extension cord?**
A: The low-profile flat plug is designed for easier access behind furniture, beds, and appliances where a standard plug may not fit.

**Q: Does this extension cord have surge protection?**
A: This extension cord is designed to provide reliable power extension and does not include built-in surge protection. If surge protection is needed, use it with a separate surge protector.

**Q: How can I use this extension cord safely?**
A: Always use this extension cord within its rated capacity of 15A, 125V, and 1875W. Avoid overloading the circuit, ensure plugs are fully inserted into outlets, and inspect the cord before use.

## Frequently Bought Together

- FIRMERST 1875W 6 Feet 15A Low Profile Flat Plug Extension Cord 14 AWG Black
- Electric Fireplace Logs Inserts Heater with Infrared Remote Controller 5 Flame Brightness 24 H Timer Overheating Protection for Home and Office Decor Black
- Comfort Smart Fire Crackler Sound System - CS-FC

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**Shop now:** [https://www.desertcart.jp/products/46242473-firmerst-14-gauge-6-feet-flat-plug-extension-cord-ul](https://www.desertcart.jp/products/46242473-firmerst-14-gauge-6-feet-flat-plug-extension-cord-ul)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-23*