Best 12 Gauge Extension Cords in 2026

ALL PURPOSE EXTENSION CORD for Indoor and Outdoor use. Great for landscaping, gardening, and powering appliances

HIGHLY VISIBLE yellow jacket provides extra safety and will not mark floors or walls

WATER RESISTANT: Flexible vinyl jacket provides protection of the cord against moisture, abrasion, and sunlight

Expanded Power – Each extension cord comes in a black finish and features 3 polarized AC outlets to provide power from a distance — perfect for creating a centralized hub for your electronics at your home, office, workshop or garage.

Versatile Cord – 12ft. power cord is strong enough to last a lifetime and pliable enough to easily fully extend.

Safety – Patented Tamper Guard rotary safety covers help protect against accidental shock.

CONTRACTOR GRADE HEAVY DUTY EXTENSION CABLE - Multipurpose electrical cord that is perfect for any work, indoor and outdoor. BUILT TO LAST & DESIGN FOR RUGGED USE. Great for powering major appliances, lawn mower, gardens, power tools, welder, air conditioner, saw, grinder, space heater, generator, compressor, construction work, HVAC, and much more!

WEATHERPROOF & WATER RESISTANT - Our high flexibility vinyl covering is more resistant to bending and won't break when moved, bent, or pulled for an extended period of time. Our superior grade extension cable can be used in extreme weather thanks to our high quality covering material that protects cords against moisture, water, snow, abrasion, corrosion, and sunlight even after long hours of use. Easy to unfold for extra convenience and flexible in cold weather.

MORE VISIBILITY, SAFER WORK SITE - This heavy-duty extension cord is lighted end letting you know when the power is on, and highly visible (OSHA compliance) with bright orange color. SLIP RESISTANT DESIGN ensures continuous power

【Up to 1875W Applications】Outdoor extension cord waterproof 400ft 12 gauge, 15 amp, 125 volts, 1875watts, male power plug NEMA 5-15P, female power socket NEMA 5-15R, SJTW power cord, ETL/cETL listed, heavy duty extension cord 400 ft is perfect for any heavy duty use: circular saws, string lights, block heater, lawn mowers, gardening, landscaping, construction site, welding work, or powering major appliances.

【Lighted End & Safe to Use】LED indicator lights up when Long Extension Cord powered, bright PVC jacket color makes this Power Cord Extension easily visible outdoor and indoor, avoid tripping in dark work environment. Each power extension cord oudoor 16/3 passed 1500V high voltage test to keep your appliance in safe.

【Weather-proof & Flexible】Extension cords jacket is wear-resistant and durable, 3 prong extension cord 400 foot is IP65 waterproof, weather-resistant, heat-resistant (158°F), corrosion-resistant, flexible vinyl indoor extension cord 400 feet will keep flexible at -58°F and easy re-pack after using.

【Up to 1875W Applications】Outdoor extension cord waterproof 100ft 12 gauge, 15 amp, 125 volts, 1875watts, male power plug NEMA 5-15P, female power socket NEMA 5-15R, SJTW power cord, ETL/cETL listed, heavy duty extension cord 100 feet is perfect for any heavy duty use: circular saws, string lights, block heater, lawn mowers, gardening, landscaping, construction site, welding work, or powering major appliances.

【Lighted End & Safe to Use】LED indicator lights up when Long Extension Cord Outdoor powered, bright PVC jacket color makes this waterproof extension cord for outside easily visible outdoor and indoor, avoid tripping in dark work environment. Each exterior extension cord 16/3 passed 1500V high voltage test to keep your appliance in safe.

【Weather-proof & Flexible】Outdoor waterproof extension cord jacket is wear-resistant and durable, 3 prong 100ft extension cord outdoor is IP65 waterproof, weather-resistant, heat-resistant (158°F), corrosion-resistant, flexible vinyl indoor 100' extension cord will keep flexible at -58°F and easy re-pack after using.

Watts Wire's Grounded 12-Gauge (12/3) 50-foot Lighted w/ Ground Extension Cords are the perfect cord all around. Our cords are designed around the contractor and perfect for the hobbyist.

Our heavy-duty power cords are made with an SJTW thermoplastic which is suitable to temperatures from -40°F to 130°F. Our double jacketed cords won't mar walls or floors but will stand up to concrete!

Our cords use 12-Gauge soft-drawn copper to give 120V 15-amps with minimal voltage drop providing all the power you require! Our power cords are the best on the market!

【 Heavy Duty 12 Gauge Extension Cord 】 15A / 125V / 1875W; premium STW 12/3 gauge contractor grade power cable has thicker, 600-volt insulation, designed for heavier use

【 3 Outlet Pigtail 】 Multi plug extension cord comes with a pigtail triple tap; allow you to power multiple appliances simultaneously and maximize the usage of power strips and wall outlets

【 For Indoor / Outdoor 】 This power cord splitter is suitable for temperatures from -40°F to 140°F; yellow PVC jacket withstand a lifetime of wear and tear and can resist abrasion, moisture, and direct sunlight; Note: make sure the connections are not immersed in water

Watts Wire's Grounded 12-Gauge (12/3) 50-foot Multi-Outlet Lighted w/ Ground Extension Cords are the perfect cord all around. Our cords are designed around the contractor and perfect for the hobbyist.

Our heavy-duty power cords are made with an SJTW thermoplastic which is suitable to temperatures from -40°F to 130°F. Our double jacketed cords won't mar walls or floors but will stand up to concrete!

Our cords use 12-Gauge soft-drawn copper to give 120V 15-amps with minimal voltage drop providing all the power you require! Our multi-tap pig-tail power splitter is the best on the market!

High Quality - Our heavy-duty power cords are made of SJTW thermoplastic which is suitable for temperatures from -40°F to 130°F. Our double jacketed cords won't damage walls or floor and could stand up to concrete!

3-Outlet Extension Cord - Our extension cords feature three outlets with each at different sides. You can plug all of your outdoor decorations, accessories, and tools in one!

Durable Extension Cord - Providing highest quality with Sturdy Long-Lasting structure, durable vinyl covering insulating layer and conducting cord protecting the wire. Plus, it resists moisture, abrasion, and the damaging effects of sunlight, and is resistant to extreme temperature which will not crack or deteriorate. This Power Wire Resists Moisture, Cracks and Scratches Even in Harsh Cold Conditions.

Watts Wire's Grounded 12-Gauge (12/3) 15-foot Lighted w/ Ground Extension Cords are the perfect cord all around. Our cords are designed around the contractor and perfect for the hobbyist.

Our heavy-duty power cords are made with an SJTW thermoplastic which is suitable to temperatures from -40°F to 130°F. Our double jacketed cords won't mar walls or floors but will stand up to concrete!

Our cords use 12-Gauge soft-drawn copper to give 120V 15-amps with minimal voltage drop providing all the power you require! Our power cords are the best on the market!

ALL PURPOSE EXTENSION CORD - Heavy Duty 12 Gauge, NEMA 15P/R 3 Prong (US), Outdoor/Indoor - All Weather construction suitable for jobsites, warehouses, homes, offices and more.

EXCEPTIONAL QUALITY - Rated for 15Amps, 125Volts, 1875Watts and 12Gauge heavy duty cord with pure copper content.

HEAVY DUTY RATING - SJWT (SJ - Hard Service Cord) Rated at 300 VAC (T - Thermoplastic Insulation) Suitable for temperature -40F to 130F (W- Weather Resistant) Flexible outer jacket provides protection against moisture, sunlight and everyday elements

HEAVY DUTY EXTENSION CORD with a standard NEMA 5-15P grounded power plug,12AWG SJTW cable Rated currenct 15Amp.1875 Watts.Stage backlines power board,holiday decoration power strip.Christmas String Lighting extension cord,orchestra extension cord,stage extension cord,multi outlet cord

POWER INDICATOR Blue power indicator is a helpful tool when the cable across the room or in dark places,be carefully there is a socket.there is a cable organizer,allow you to storage the cable effective and easy.

WONDERFUL POWER EXTENSION CABLE 3 socket in the cable,6ft between each socket, and one more connector at the end of cable.This new design of the extension cable will allow you to plug in more device in 1 cable.With the IP44 waterproof cap allow you to use it outdoor in your garden.

Watts Wire's Grounded 12-Gauge (12/3) 75-foot Multi-Outlet Lighted w/ Ground Extension Cords are the perfect cord all around. Our cords are designed around the contractor and perfect for the hobbyist.

Our heavy-duty power cords are made with an SJTW thermoplastic which is suitable to temperatures from -40°F to 130°F. Our double jacketed cords won't mar walls or floors but will stand up to concrete!

Our cords use 12-Gauge soft-drawn copper to give 120V 15-amps with minimal voltage drop providing all the power you require! Our multi-tap pig-tail power splitter is the best on the market!

All purpose extension cord for indoor and outdoor use. Great for gardening, landscaping, or powering any household appliance.

The flexible vinyl covering is both water and flame resistant, protecting the cord against moisture, abrasion and sunlight.

Safety lighted plugs indicate when the power is on. Slip resistant design.

MULTIPURPOSE EXTENSION CABLE - This electrical cord is a perfect extension cable for heavy duty indoor and outdoor use. It is ideal for landscaping, lawn, garden, power tools, welder, air conditioner, saw, grinder, construction work, HVAC, as well as major appliances.

MORE VISIBILITY, SAFER WORK SITE - This heavy-duty extension cord is lighted end and high visibility (OSHA compliance) letting you know when the power is on. The bright yellow SJTW cord jacket reduces the risk of tripping over while connected to electrical appliances.

REINFORCED BLADES - Protect prongs from bending or cracking for extra durability. Perfect for use at home or in an industrial setting. 12 GAUGE HEAVY DUTY 3-wire grounded plug, 200 foot extra long cord, 15 amp, 125 volts, 1875 watt, 5-15P/R, UL Listed. Temperature Range: -40°F to +140°F

12 gauge heavy duty wire, 3 prong grounded plug

Nickel coated brass blades won't corrode which helps prevent arcing

Ideal for use with heavy duty power tools and appliances

Appliance Cord: The GoGreen Power 14/3 12' Appliance cords are the ideal, heavy duty cords for large appliances at home, such as washing machines, refrigerators and dryer machines. This kink-free cord from GoGreen fits the bill perfectly.

Grounded Plug: The grounded, 3 prong, right-angle male plug guards against accidental disconnection so that your appliances are not only securely connected, but also safely discharging excess electricity.

Heavy Duty Power Extension: Suited for virtually any indoor appliance use, including air-conditioners, appliances, and fans, with a maximum of 15 amps, 1875 watts, 125v.

【Up to 1875W Applications】25 ft Outdoor extension cord waterproof 25ft 12 gauge, 15 amp, 125 volts, 1875watts, male power plug NEMA 5-15P, female power socket NEMA 5-15R, SJTW power cord, ETL/cETL listed, heavy duty extension cord 25 ft is perfect for any heavy duty use: circular saws, string lights, block heater, lawn mowers, gardening, landscaping, construction site, welding work, or powering major appliances.

【Lighted End & Safe to Use】LED indicator lights up when 25 ft Extension Cord outdoor powered, bright PVC jacket color makes this Power Cord Extension easily visible outdoor and indoor, avoid tripping in dark work environment. Each outdoor extension cord 25 ft waterproof 16/3 passed 1500V high voltage test to keep your appliance in safe.

【Weather-proof & Flexible】Extension cords jacket is wear-resistant and durable, 3 prong 25 foot outdoor extension cord is IP65 waterproof, weather-resistant, heat-resistant (158°F), corrosion-resistant, flexible vinyl indoor 25ft extension cord will keep flexible at -58°F and easy re-pack after using.

PREMIUM PRODUCT: Highly Resistant, Durable & Perfectly Flexible Power Extension Cord, designed to perform in extreme temperatures (will not crack or deteriorate). Rugged vinyl jacket is resistant to oil, grease, moisture and abrasion. Heavy Duty protection makes this Power Extension Cord suitable for both Outdoor and Indoor use!

GREAT VALUE: (1-pack) 50 ft Power Extension Cord, Yellow, Outdoor & Indoor Heavy Duty, 12 gauge/3 wire/3 prong.

SAFETY FIRST: Lighted end indicates when the power is on! Bright PVC jacket color makes this Power Extension Cord easily visible Outdoor and Indoor, most suitable for work/construction purposes, home, and office.

PREMIUM PRODUCT: Highly Resistant, Durable & Perfectly Flexible Power Extension Cord, designed to perform in extreme temperatures (will not crack or deteriorate). Rugged vinyl jacket is resistant to oil, grease, moisture and abrasion. Heavy Duty protection makes this Power Extension Cord suitable for both Outdoor and Indoor use!

GREAT VALUE: (1-pack) 3 ft Power Extension Cord, Orange, Outdoor & Indoor Heavy Duty, 12 gauge/3 wire/3 prong ETL listed.

SAFETY FIRST: Lighted end indicates when the power is on! Bright PVC jacket color makes this Power Extension Cord easily visible Outdoor and Indoor, most suitable for work/construction purposes, home, and office.

Outdoor/Indoor Heavy Duty Extension Cord - 12/3, Yellow, PVC, SPT-2, 5-15P, 1 Outlet

Outdoor/Indoor Heavy Duty Extension Cord - 12/3, Yellow, PVC, SPT-2, 5-15P, 1 Outlet

12/3 6 ft AWG SJT EXTENSION CORD

PRACTICAL GENERATOR EXTENSION CORD ADAPTER: this generator adapter cord converts a 20-amp receptacle to a standard 15-amp grounded receptacle with one quick twist

HEAVY-DUTY GENERATOR CORD ADAPTER: a jacket keeps out the elements and protects the generator extension cord adapter for durability; the molded connectors are also crafted from impact-resistant material to withstand rugged industrial uses

CONTRACTOR GRADE GENERATOR CORD ADAPTER: this generator extension cord adapter is great for heavy-duty industrial applications such as operating circular saw, heater and table saw

PREMIUM PRODUCT: Highly Resistant, Durable & Perfectly Flexible Power Extension Cord, designed to perform in extreme temperatures (will not crack or deteriorate). Rugged vinyl jacket is resistant to oil, grease, moisture and abrasion. Heavy Duty protection makes this Power Extension Cord suitable for both Outdoor and Indoor use!

GREAT VALUE: (1-pack) 10 ft Power Extension Cord, Green, Outdoor & Indoor Heavy Duty 12 gauge/3 wire/3 prong ETL listed.

SUBTILITY IS KEY: Dark PVC jacket color makes this Power Extension Cord blend with its environment so that the cord is not visually distracting - especially suitable for musicians and event organizers. Lighted end indicates when the power is on!

Self-Leveling System winds the cord evenly. Lighted triple tap outlet for plenty of capacity. Circuit breaker with reset button prevents breaker from tripping and blown fuses. Reset circuit at reel.

The 12/3 AWG SJTOW cord flexible in low temperatures and resists the effects of oil, water and sunlight. Grounded plug includes 4.5 ft. lead-in cord.

Adjustable cord stopper ensures outlet is always within reach. Cord locks out in 2 ft. increments

[Specification] Black Outdoor extension cord 50 ft 16 gauge,13 amp, 125 volts, 1625watts, male plug NEMA 5-15P, female plug NEMA 5-15R, SJTW cord, ETL/cETL listed heavy duty extension cord 50 ft.

[Weather-proof & Flexible] Long black extension cord 50 ft jacket is wear-resistant and durable, 3 prong extension cord 50 feet outdoor is IP65 waterproof, weather-resistant, heat-resistant (158°F), corrosion-resistant, flexible vinyl power cord extension 50 foot will keep flexible at -58°F and easy re-pack after using.

[Safety to Use] Plug and socket have a long durable strain relief, it pass more than 20000 times bending without breaking. Each power extension cord oudoor 16/3 passed 1500V high voltage test to keep your appliance in safe.

HEAVY DUTY extension cable for indoor and outdoor use with 15 Amps, 125 Volts, 1875 Watts.

SAFE- UL certification, NEMA5-15P/R, 3-wire cord is grounded to protect you and your tools and appliances.

HIGHLY VISIBLE- Lighted end provides indication when the power on and yellow jacket provides extra safety and prevents tripping while working. VERSATILE USE- Powers a variety of farm and ranch tools such as saws or compressors.

Lighted End and Extra Size for Safety: The power socket indicator light shows that power is on and the heavy duty extension cord 75 ft is ready for work. Extra size Male NEMA 5-15P power plug and Female NEMA 5-15R power socket for safety. It is thicker and more durable than the normal type on market and has high insulation safety performance to prevent electric shock. ETL/cETL Listed for safe approval.

Many Application Power Cord Extension: 3 Prong grounded outlet 12 AWG extension cord 75 foot. The PVC outer jacket is Flame-resistant, Waterproof Weather-resistant, Cold-resistant (-50°C), corrosion-resistant suitable for indoor and outdoor, home office use, and industrial extension cord. The Shiny Yellow color for easy visibility provides extra safety and avoids tripping while working.

High Flexible & Easy to Use: HUANCHAIN high flexible Vinyl extension cable cords have better bending resistance and prevent them from breaking during long-term movement, bending, and pulling. Super soft feel, easy to unfold when used. Each cord has velcro packing and is easy to repack and recycle after use.

DESIGNED FOR RUGGED USE - Water, oil, and flame resistant. Flexible in cold temperatures.

HEAVY DUTY STRAIN RELIEF for optimal performance. 3 prong grounded plug for added safety.

REINFORCED BLADES protect prongs from bending or breaking. Oil resistant for farm and industrial use.

Max up to 1875W Applications: 3 cores of extension cord make sure to provide up to 1875W power. Ideal for circular saws, grinders, string lights, bloc

Thick & Flexible: The soft cord makes itself more easy keep on the edges of the furniture. The PVC outer jacket is not only wear-resistant and durable, but also resistant to moisture and sun. It be used in the environment of -13~113℉.（Note: Not soaking the cords in water for a long time)

Light Indicator Design: The transparent female and male plugs let you know at a glance whether the wire is powered on, and quickly determine whether the extension cord or the electrical appliance is faulty. It also gives you a light to better spot the extension cord in dark or obstructed situations.

Heavy Duty Extension Cord - 15 amps, 125 volts, 1875 watts, 5-15P/R, 12 gauge heavy duty cord with pure copper wire.

Lighted Extension Cord End - LED indicator lights up when the cord is powered to let you know the triple tap extension cord is ready to use and easy to be found in the dark.

Indoor / Outdoor Power Cord - Temperature Range: -40°F to +140°F, flexible vinyl jacket protects cords against moisture, abrasion and direct sunlight.