18/4 SJOOW Wire 100FT 18 AWG 300V SJOOW Cable - Durable OFC Cord

In this review of the 18/4 SJOOW Wire 100ft, the bottom line is straightforward: this cable is built for demanding, temporary power and portable equipment applications where durability and reliable conductivity matter most. The reviewer found the cord particularly well suited to job sites, generators, portable lights and marine settings thanks to a tough PVC jacket and oxygen-free copper conductors that improve current carrying and resist corrosion. For anyone needing a flexible, four-conductor 18 AWG SJOOW cord rated to 300V, this product delivers solid real-world performance.

Key Features

• Rugged jacket: The oil, water and acid-resistant PVC outer jacket protects the cable in harsh industrial and outdoor environments for longer service life.
• Wide temperature range: Rated to operate from -40C to 90C, the cord handles cold-starts and hot operating conditions without significant stiffness or breakdown.
• OFC conductors: Four conductors made of oxygen-free copper with 41 strands each provide improved conductivity and heat dissipation compared with plain copper alternatives.
• Stranded flexibility: The finely stranded 18 AWG construction remains flexible for portable equipment and routing through tight spaces on job sites.
• Versatile uses: Sized and constructed for power distribution to portable tools, lights, generators, motors and marine power runs where a 4-conductor cable is required.

Who It's For

This cable is aimed at tradespeople, event technicians, rental fleets and boat owners who need a heavy-duty, flexible 18/4 cord for temporary power, portable generators and equipment leads. The rugged PVC jacket and OFC strands make it a reliable choice for environments where abrasion, oil exposure or moisture are common.

It is not intended for installations that require a separate grounding conductor (this is a 4 current-carrying conductor cable only) or for permanent in-wall wiring that must follow residential building wiring codes. Buyers who need a grounded 4+1 cable or certified conductors for fixed building wiring should choose a different product.

Pros & Cons

Pros

• Durable oil-, water- and acid-resistant PVC jacket stands up to harsh environments.
• Oxygen-free copper, 41-strand conductors deliver good conductivity and reduced corrosion risk.
• Flexible stranded design works well for portable tools and routing on job sites.

Cons

• Contains four current-carrying conductors only, so it lacks a dedicated separate grounding conductor.

Specifications

Length	100 ft
Conductor count	4 conductors
Gauge	18 AWG
Voltage rating	300V
Conductor type	Oxygen-free copper (41 strands per conductor)
Jacket	PVC oil/water/acid resistant, 0.65 mm thickness
Temperature range	-40C to 90C

Our Verdict

The 18/4 SJOOW 100 ft cable is a practical, value-oriented choice for portable power distribution where ruggedness and conductor quality matter. Tradespeople and event or marine operators will appreciate the OFC strands and tough PVC jacket, but anyone needing a dedicated grounding conductor or a cable for permanent in-wall wiring should look elsewhere.

Frequently Asked Questions

Does this cable include a separate ground conductor?
This cable contains four current-carrying conductors only and does not include a separate grounding wire.

Is this cord suitable for outdoor and marine use?
Yes, the oil-, water- and acid-resistant PVC jacket and wide temperature rating make it suitable for outdoor and many marine applications.

What is the conductor material?
The conductors are oxygen-free copper (OFC) made of 41 finely stranded wires to improve conductivity and corrosion resistance.