Top 10 Best power inlet in 2026

Last Updated - 6/8/2026

🏆Best Choice

RVMATE

Pre-Drilling 50 Amp Generator Inlet Box RVMATE, NEMA SS2-50P Power Inlet Box, 125/250V, 6250/12500W 50a Power Inlet Box, ETL Listed, Waterproof for Outdoor Use

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•🚩【Pre-drilling Design】: RVMATE 50 Amp generator inlet box is easy to remove and replace the wiring caps without using special tools (such as driller/knockout punch) or finding an electrician . RVMATE pre-drilling generator inlet box saves your time and money.
•🚩【ETL Certification】: 125/250V, 6250/12500W, 50A generator power inlet box is designed for the use with the transfer switches or panels and generator-ready load centers. And It also is designed be installed outdoors in an open area where the generator is being used to avoid carbon monoxide hazard. ETL/cETL certified
•🚩【Safety Light Indication】: There is a clear LED power indicator on the flip cover. Compared with the old version, the green indicator lights up when the power is successfully connected, which provides the best performance and higher security（especially working at night or in dark areas).
•🚩【Enough Space】: The internal space of our power inlet box is 50% larger than that of the ordinary power inlet box. It provides generous wiring space. And the front of the box is removable for easy placing and wiring.
•🚩【Weatherproof & Anti-rust】: The power inlet box is constructed of steel with durable, anti-corrosive powder-coat paint. And when not working, the weatherproof flip cover can be closed to prevent moisture front entering the connector inlet.
•🚩【100% Satisfactory Service】: We provide 12 months after-sales service. If you have any questions, please contact us and we will be happy to assist you. PATENTED.

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$28.99

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RVINGPRO

RVINGPRO 50 Amp Generator Cord 25FT and Power Inlet Box Combo Kit - Pre-Drilled, Waterproof, NEMA 14-50P to SS2-50R, ETL Listed

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Heavy Duty 50 Amp Generator Cord: RVINGPRO 50 amp generator cord is made of 100% copper conductor with flame retardant coating and PVC jacket. Length:25 FT; Voltage: 125V/250V; Wire Gauge: STW 6/3 + 8/1 AWG; Male Plug: NEMA 14-50P; Female Plug: NEMA SS2-50R, Twist Locking Connector; Max Wattage: 12,500 Watts. PATENTED.
•Pre-Drilled 50 Amp Generator Inlet Box: RVINGPRO NEMA SS2-50P 50 amp inlet box for generator is designed with 4 pre-drilled holes distributing in 4 directions (left, right, bottom and rear), which allows direct connection to switches and electrical panels from multiple directions. NO Hassle Drilling Needed. You can easily open the hole with your fingers within only 30s.
•ETL Listed: Both of RVINGPRO 50 amp generator cord and power inlet box have passed ETL certification, which are safe enough for outdoor use. Our generator to house hookup kit can work well in various terrible weather conditions, no matter hurricanes or snowstorm, ensuring a stable and continuous power supply for power outage emergency.
•Use with Ease: The twist locking ring on the female plug of the 50-amp generator cord helps to keep dust and rain out of plug connection while the ergonomic finger grip on the male plug makes it easier for you to plug and unplug. Besides, there is a green indicator light on the cap of the generator inlet box, which is easy for you to tell when the power is on.
•What You’ll Get: 1 x 50 Amp Generator Cord (25FT) + 1 x 50 Amp Generator Inlet Box (Pre-Drilled) + 1 x 50A Adapter Plug + 1 x Cable Tie + 1 x Storage Bag. Besides, we offer 90 days no reason to return service. If you have any problems during using our product, welcome to reach to us, there is professional customer service waiting to help solve your problems.

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$139.99

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VEVOR

VEVOR 50 Amp Generator Cord and Power Inlet Box Kit, 25FT Generator Extension Cord NEMA 14-50P/SS2-50R STW 6/3+8/1 AWG with Twist Lock Connector, Pre-Drilled Inlet Box, ETL Listed

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Premium 50A Generator Cord: Our generator cord is STW gauge with 6/3+8/1 AWG Cord, supporting up to 50 AMP current. Featuring a NEMA 14-50P male plug designed to fit into a 50A generator output and a twist-lock NEMA SS2-50R female plug for a secure connection to a 50A power inlet box with a NEMA SS2-50P male end. Perfect for emergency power needs in any weather!
•ETL Certified Reliability: Ensure ultimate security and durability with our ETL-certified generator cord and power inlet box, designed to withstand tough conditions. This 25-foot heavy-duty generator cord is crafted from pure copper wiring and encased in flame-retardant PVC that resists heat and UV damage. It protects against rain, wind, snow, soil, and rocks, even when used outdoors for long periods.
•Flip Cover Power Inlet Box: Featuring a pre-drilled hole design with detachable plug, this power inlet box simplifies installation without additional tools. Its entire casing is coated with a rust-resistant layer, providing robust protection against wind, rain, and dust. The clear indicator light on the flip cover illuminates when the power is successfully connected, allowing for easy visibility at any time of day or night.
•Twist-Lock Design: Our generator cord features a thoughtfully designed handle on the male plug, making it effortless to connect and disconnect while reducing the risk of damage from forceful interactions. The female end boasts a robust twist-lock mechanism that securely locks the plug into place with a simple twist. It ensures a stable, slip-free connection and shields the interior from dust and water intrusion.
•Ideal for Outdoor Power Needs: Experience uninterrupted power supply to your home or RV with our 50A generator cord and power inlet box kit, even during power outages and severe weather conditions. It includes a carrying strap and a storage bag, making it easy to handle and store. When not in use, the generator cord can be easily rolled up and stored without taking up space in your RV or home. Rely on our kit for a stable and dependable power output!

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$115.11

$139.99

-18%

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CircleRiver

CircleRiver UL Listed 50 Amp 15Feet Generator Cord and Power Inlet Box Combo Kit NEMA 14-50P Male to SS2-50R STW 6/3+8/1 AWG 125/250V Twist Locking with Inlet Box for Generator to House

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•UL & ETL Listed: UL certified for the generator cord and ETL certified for the box. Safe and Reliable.
•50 Amp Generator Cord: Length: 15 FT. 50 Amp NEMA 14-50P Male to NEMA SS2-50R Female. 125/250-Volts, STW 6/3 + 8/1 AWG, Maximum Wattage: 12,500 Watts.
•Pre-drilled SS2-50P Generator Power Inlet Box: 50 Amp, 125/250 V, 12500 W, NEMA SS2-50P twist-lock style power generator inlet box. The best partner for the generator to the house power cord. Easy to open with removable knockouts.
•Emergency Ready: This generator extension cord with inlet box provides a safe and convenient way to connect your generator to the manual transfer switch on your house, providing the power you need in bad weather like hurricanes, storms. Also for house building.
•Heavy Duty: Pure copper wiring coated with a heavy duty flame retardant, heat resistant, UV resistant PVC, provides protection from rain, wind, snow, soil, and rocks for emergency ready.

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$86.99

$92.99

-6%

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LANDNOR

50AMP 15FT Generator Cord with Pre-Drilled Power Inlet Box, 125V/250V NEMA 14-50P to SS2-50R, STW 6/3+8/1 AWG Generator Cord and Twist Locking with Inlet Box, Waterproof Combo Kit, UL&ETL Listed

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Premium 50A Generator Cord: Heavy duty power cord is made of 100% pure copper wire with flame retardant graphic layer and PVC jacket. High-quality metals, welds and surface treatments. The pre-drilled diameter is approximately 0.86 inches, which is about 35% higher than that of similar products. The power cord is UL listed and the power inlet box is ETL listed. They are designed to remain functional in extreme weather.
•SPECIFICATIONS：Length:15 FT; Voltage: 125V/250V; Wire Gauge: STW 6/3 + 8/1 AWG; PLUG: 50AMP NEMA 14-50P Male to NEMA SS2-50R Female; Twist Locking Connector; Maximum Wattage: 12,500 Watts. Every product has undergone factory inspection, and there has never been a situation where there was no adapter in the package!
•EASY TO USE PRE-DRILLED BOX: Measuring up to 6.3'*4.25'*3.1', Landnor 50AMP NEMA SS2-50P Inlet box is designed with pre-drilled holes in all four directions and a larger size box. You can easily open the drilled holes to connect switches and electrical panels from any direction. The larger space is your neater wiring, faster heat dissipation and easier operation.
•ERGONOMIC DESIGN: The twist-lock ring on the female plug of the 50 amp generator cord helps keep dirt and rain out of the plug connection, while the ergonomic finger grip on the male plug makes it easier for you to plug and unplug. The generator box has a full-coverage rust-resistant coating that provides strong protection against wind, rain and rust. It has a flip-top lid with wind- and rain-resistant foam to keep out dust and moisture.
•ALL WEATHER KEEP WORKING: This generator extension cable with air intake box provides a safe and convenient way to connect your generator to your home's manual transfer switch, our generator-to-home connection kit works well in all kinds of harsh weather conditions, whether it's a hurricane or a blizzard, and ensures a stable and continuous supply of power in case of power outage emergencies.
•What You Get: 1 x 50 Amp Generator Cable (15 feet) + 1 x 50 Amp Generator Entry Box (pre-drilled) + 1 x Cable Tie + 1 x Storage Bag + 1 x User Manual. In addition, we provide 1 year warranty and 30 days no reason return service. If you encounter any problems when using our products, please feel free to contact us, there are professional customer service waiting for you to help solve your problems.

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$79.00

$88.00

-10%

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Kohree

Kohree 50 Amp Generator Cord and Power Inlet Box Kit, 15FT NEMA 14-50P to SS2-50R Generator Extension Cord, 50Amp Pre-drilled Generator Inlet Box with Cable Waterproof Combo Kit, 125/250V, ETL Listed

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•【Heavy Duty Generator Cord】Length: 15 FT; Male plug: NEMA 14-50P; Female plug: NEMA SS2-50R; Wire Gauge: 6 AWG + 3*8 AWG, 4 conductors; Voltage: 125V/250V; Max wattage: 12500 Watts.
•【User-Friendly Pre-Drilled Power Inlet Box】SS2-50P Power Inlet Box is designed with pre-drilled holes on all 4 sides and features an enough space box measured 4'' x 3'' x 6.1''.
•【Weatherproof Generator Inlet Box Kit】The generator power cord is made of 100% copper wire coated with a heavy duty flame retardant, heat resistant PVC sheath & water resistant molded plug.
•【Electricity Safety】The generator cord and power inlet box are ETL listed. The cord is with a twist lock male plug which has lock function to prevent the plug falling down. Moreover, the power inlet box cover is with a safe light indicator to show you the working condition.
•【What You’ll Get】You will receive 1 x 50 amp generator extension cord (15 feet) + 1 x 50 amp generator inlet box (pre-drilled) + 1 x cable organizer + 1 x user manual.

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$88.99

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HILINEGO

HILINEGO 50 Amp Generator Cord 25FT and Power Inlet Box, 125V/250V Extension Power Cord, NEMA 14-50P/SS2-50R Twist Lock Connector, NEMA SS2-50P Pre-Drilled Inlet Box for Generator to House, ETL Listed

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•【50A Generator Cord】Includes a 25FT cord with a NEMA 14-50P male plug and SS2-50R female connector, providing 50 Amps at 125/250 Volts with a maximum wattage of 12,500 Watts. The pure copper wiring is coated with a heavy-duty flame retardant and PVC jacket, making it heat and UV resistant. The cord is UL listed for safety and durability.
•【Pre-drilled Generator Inlet Box】50A, 125V/250V, Max power: 12500W. Featuring a NEMA SS2-50P twist-lock style power generator inlet box, this product is coated with anti-rust protection, ensuring durability against harsh weather conditions. It serves as the perfect companion for connecting your generator to the house power cord.
•【ETL Listed】Our Generator Cord and Power Inlet Box is proudly ETL Listed, ensuring high quality and safety standards. With 100% copper construction and a temperature range of -4°F to 221°F, you can trust this set to safeguard your family during power outages, hurricanes, storms, floods, and thunderstorms.
•【Package Contents】The package includes 1 x 50 Amp Generator Cord, 1 x 50 Amp Inlet Box, 1 x Extra storage bag, 1 x Carrying strap for convenient transportation. Trust this comprehensive set for all your power connection needs.
•【Trustworthy】At Hilinego, we believe that every 50A generator cord and 50A generator inlet box we produce is a reflection of our commitment to enhancing the quality of life. Our dedication to providing top-notch products with practical design at a great value is unwavering. If you are not completely satisfied with our products, please don't hesitate to reach out to us anytime for assistance. We are here to address your concerns and ensure your satisfaction.

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$109.99

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RVGUARD

RVGUARD Emergency Power Combo Kit, 25 Foot 50 Amp Generator Cord and Power Inlet Box, NEMA 14-50P to SS2-50R Generator Cord with NEMA SS2-50P Pre-Drilled Generator Inlet Box, ETL Listed

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Emergency Power: In the event of power outages or residing in regions with inconsistent electricity supply, the utilization of this kit in conjunction with a generator can confer emergency backup power solutions for residential households. PATENTED.
•Pre Knock out: The wiring holes can be effortlessly detached and reattached without the need for specialized tools, negating any concerns of inadvertent product damage caused by drilling.
•50 Amp Generator Cord: 25 Foot, 14-50P to SS2-50R generator extension cord, 125/250V 6750/12500W heavy duty STW cord.
•50 Amp Power Inlet Box: SS2-50 generator plug, 125/250V 6750/12500W power inlet box, capable of satisfying a broad range of electrical demands.
•Superior Durability: The power cord is fabricated using weather-resistant 6/3+8/1 gauge STW jacket material, while the box is constructed from steel and coated with anti-corrosive powder for added durability. PATENTED.

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$119.99

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Campzlly

Campzlly 50 Amp Generator Cord 15FT and Power Inlet Box, NEMA 14-50P Male to SS2-50R 125/250V Twist Lock Connector with Pre-Drilled NEMA SS2-50P Generator Inlet Box for Generator to House, ETL Listed

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Emergency Combo Kit: Campzlly's 50 Amp generator cord and power inlet box are essential tools for home use, whether it's for backup power or emergency situations. It meets all your power needs and offers exceptional convenience, seamlessly connecting to your generator. With robust and well-crafted components, it ensures a consistent power supply to your home
•Unmatched Performance: 50 amp generator power inlet box has been perfectly upgraded. It is equipped with 4 large holes, making it easy to remove knockouts without the need for any drilling tools. The 50 amp generator cord is designed with all-copper wires to ensure exceptional conductivity. The high-density PVC jacket offers amplified durability, along with waterproofing and UV resistance. As an ETL Listed product, it provides complete peace of mind
•Crafted to Endure: Campzlly's 50 amp power inlet box is coated with anti-corrosive powder paint, protecting it from rain, UV rays, and rust. Our generator cord has proven its resilience in tough bend tests, emerging unscathed. Our emergency combo kit remains flexible, smooth, and durable even in extreme temperatures. Get ready for superior quality that will last for 5 years or more
•Parameter Information: Campzlly NEMA 14-50P male plug connects to the generator power socket, while the NEMA SS2-50R female receptacle connects to your NEMA SS2-50P power inlet box. It operates at 50A, 125/250V, with a maximum wattage of 12,500 Watts. It is ETL Listed, providing an impeccable solution to ensure you are prepared for unforeseen power outages
•User-Centric Design: 50 amp generator cord features ergonomic grip handles, ensuring both safety and ease of use for quick and effortless disconnection. Its vibrant green color makes it easily visible in dimly lit areas, simplifying equipment handling. 50 amp generator inlet box is equipped with a secure green indicator on the flip cover, ensuring optimal performance and enhanced safety
•Trustworthy Brand: At Campzlly, customer satisfaction is our top priority. We strive to exceed your expectations through innovative product design and dedicated customer service. We offer seamless replacements and returns, along with round-the-clock online customer service. Shop with us for a confident experience

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$89.99

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Hikzest

Hikzest 50 Amp Generator Cord and Power Inlet Box, Heavy Duty 25FT Generator Extension Cord, NEMA 14-50P to SS2-50R 125/250V Twist Locking with Pre-Drilled Inlet Box for Outdoor Emergency Kit

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Heavy Duty 50 Amp Generator Cord: Includes a 25FT cord with a NEMA 14-50P male plug and SS2-50R female connector, providing 50 Amps at 125/250 Volts with a maximum wattage of 12,500 Watts. The pure copper conductor is coated with a heavy-duty flame retardant and PVC jacket, making it heat and UV resistant. As an ETL Listed product, it provides complete peace of mind.
•Pre-drilled Generator Inlet Box: 50A, 125V/250V, Max power: 12500W. Featuring a NEMA SS2-50P twist-lock style power generator inlet box, this product is coated with anti-rust protection, ensuring durability against harsh weather conditions. It serves as the perfect companion for connecting your generator to the house power cord.
•ETL Listed: Our Generator Cord and Power Inlet Box is proudly ETL Listed, ensuring high quality and safety standards. With 100% copper construction and a temperature range of -40°F to 176°F, you can trust this set to safeguard your family during power outages, hurricanes, storms, floods, and thunderstorms.
•User-Friendly Features: Hikzest 50 amp generator cord comes with comfortable, ergonomic handles for safe, swift disconnection. Its yellow hue ensures visibility in low light, making it easier to manage. Additionally, the 50-amp inlet box features a secure green indicator light on its flip cover, guaranteeing top performance and heightened safety.
•Trustworthy Brand: At Hikzest, customer satisfaction is our cornerstone. Our dedication to providing top-notch products with practical design at a great value is unwavering. If you are not completely satisfied with our products, please don't hesitate to reach out to us anytime for assistance. We are here to address your concerns and ensure your satisfaction.

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$109.99

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