Water and oil resistant: The 300V 12 AWG SJOOW wire 12/3 12 gauge 3 conductor SJOOW electric wire (SJOOW-Service, Junior, Oil, and Water Resistant) is designed to withstand harsh conditions, perfect for industrial/outdoor/commercial use, including portable power light/RV inverter/fryer/dryer/heater/power tool and machinery. Safe 12 gauge SJOOW portable power cable: The 12 gauge 3 conductor OFC wire (OFC-Oxygen Free Copper) meets UL standards (UL E215210),provides greater electrical conductivity, and the 300V SJOOW electrical wire rating without overheating or damaging electric 12/3 SJOOW cable for ensuring safety and durability in all situations. Heavy duty 12 AWG SJOOW wire: The 12/3 12 gauge 3 conductor portable power cable wire is extremely thick, 12 gauge great power source provides high capacity for handling higher voltage loads, 12 gauge SJOOW electric wire is much more resistant to corrosion, absorbs heat better and lasts longer than non-OFC wire. Well-insulated 12AWG SJOO