Water and oil resistant: The 600V 12 AWG SOOW wire 12/4 12 gauge 4 conductor SOOW electric wire(SOOW-Service, Oil, and Water Resistant) is designed to withstand harsh conditions, perfect for industrial/outdoor/commercial use,including 20AMP welder machine/power generator/RV outlet box/electric car charger/fryer/dryer. Safe 12 AWG SOOW portable power cable: The 12 gauge 4 conductor OFC wire (OFC-Oxygen Free Copper) meets UL standards (UL E215210),provides greater electrical conductivity, and the 600V SOOW electrical cable cord wire rating without overheating or damaging electric 12/4 SOOW cable for ensuring safety and durability in all situations. Heavy duty 12 gauge SOOW cable: The 12/4 12 AWG 4 conductor portable power cable wire is extremely thick, 12 gauge great power source provides high capacity for handling higher voltage loads, 12 gauge SOOW electric wire cable is much more resistant to corrosion, absorbs heat better and lasts longer than non-OFC wire. Industrial grade 12 gauge SOOW cord: The 12/4 12 AWG SOOW electrical cable has outer rubber insulation and inside rubber jacket, making 12 AWG SOOW wire ideal for use in industrial commercial residential power generation, including motor leads, battery chargers, portable lights, and machinery. Wide-applications : The electric 12/4 12 AWG SOOW bulk cable wire works well for distributing power and controlling circuits, temporary lighting systems and portable tools appliances, heavy-duty electrical equipment and marine electrical systems,etc. Our 12/4 600V 12 gauge SOOW extension cord for welder machine especially. Extra SOOW extension cable: Making an extension cord is essential if you have generators or high power high voltage loads equipment. 12 AWG 4 conductor SOOW cable connects the generator inlet box to the breaker panel, extending the operating range of the welder or generator. 25FT 12/4 SOOW