GENMAX 4000W Portable Open Frame Inverter Generator, 223cc Engine, with 30A RV Outlet, Clean Power (<5% THD) for Camping, Home & Jobsite Backup, Eco-Mode, Low Oil Shutdown, USB-C & USB-A Ports — Open-Box, 6% Off

Name: GENMAX 4000W Portable Open Frame Inverter Generator, 223cc Engine, with 30A RV Outlet, Clean Power (<5% THD) for Camping, Home & Jobsite Backup, Eco-Mode, Low Oil Shutdown, USB-C & USB-A Ports
Brand: GENMAX
SKU: awhd-us-b0g422nhdb
Price: 329.17 USD
Availability: InStock

Brand: GENMAX

Condition: Used

$329¹⁷

$349⁹⁹

-6% Save $20⁸²

Updated: 3 days ago

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Description

【Powerful & Clean Inverter Power】Powered by a reliable 223cc OHV engine, this generator delivers 4000W peak and 3200W running watts. Its advanced inverter technology produces clean, stable electricity with less than 5% THD, safe for sensitive electronics like laptops, phones, and tools

【RV Ready with 30A Outlet】Equipped with a 30A RV outlet, it connects directly to your recreational vehicle to power essentials like air conditioners. An additional 120V 20A household outlet ，plus USB-C & USB-A Ports provides versatile power for home backup or job sites

【Ultra-Quiet & High-Efficient Operation】Intelligent Eco-Mode ensures efficiency, delivering up to 11.7 hours of runtime at 50% load on a single tank. Remarkably quiet, it operates at just 66 dB(A) measured from 7m at 25% load

【Built-in Safety & Protection Features】For peace of mind, it includes automatic low oil shutdown and a 20A circuit breaker to protect both the generator and your connected equipment. Clear indicator lights provide instant status updates.

【Practical Design with Long-Term Support】Weighs only 61.7 lbs for manageable portability.Backed by a 3-Year Limited Warranty and ongoing technical support

GENMAX 4000W Portable Open Frame Inverter Generator, 223cc Engine, with 30A RV Outlet, Clean Power (<5% THD) for Camping, Home & Jobsite Backup, Eco-Mode, Low Oil Shutdown, USB-C & USB-A Ports

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Product Details

SKU:: awhd-us-b0g422nhdb
Model:: GM4000Xi
Country:: US
ASIN:: B0G422NHDB
UPC:: 784482491340

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $21 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

Why use OpenBoxFox?

Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for GENMAX products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.

Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.