EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input - Green Vista Living
EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input - Green Vista Living
EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input - Green Vista Living
EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input - Green Vista Living
EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input - Green Vista Living
EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input - Green Vista Living

EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input

Top Authorized Dealer | Manufacturer Warranty Included

$4,199.00
$5,249.00
$4,199.00
Save $1,050.00
(-20%)
Please hurry! Only 5 left in stock

Price Match

Free Shipping*

Free 30-Day Returns*

All orders are sales tax free!

Shipping timeline listed above is an estimate. Please call or message us for precise ETAs.

EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input - Green Vista Living

Vendor: EG4

EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input

$5,249.00 $4,199.00

Vendor: EG4

EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input

$5,249.00 $4,199.00

EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input

Versatile and Powerful Hybrid Inverter

The EG4 FlexBOSS21 is a versatile 48V split-phase, hybrid inverter/charger that offers the same dependable power as the 18kPV with enhanced flexibility. Powerful enough to start a 5-ton AC unit, the FlexBOSS21 supports 21kW of PV input. Capable of paralleling up to 10 units together, the FlexBOSS21 has an impressive total output of 160kW. Three MPPTs give users optimal control over their solar needs, while the updated EG4 monitoring software allows for convenient total remote management, complete with mobile notifications and remote setting. Seamless interaction with GridBOSS gives users control over their entire Energy Storage System (ESS).

EG4 FlexBOSS21 Hybrid Inverter Key Features

  • Flexible Power Options: Operate off-grid, with grid support, or sell excess power back to the grid.
  • High PV Input Voltage: Supports up to 600V DC, allowing reduced cable sizes.
  • Smart Connectivity: Remote access with Wi-Fi and closed-loop communication with compatible batteries.
  • Safety-First Design: Includes rapid shutdown, ground fault monitoring, arc-fault protection, and robust safety certifications. 

Specifications

  • Input Voltage Range: 120/240VAC; 120/208VAC (Split-phase)
  • Output Power: 16kW continuous, with a peak surge capacity of 24kW
  • Dimensions: 29.5 x 20.5 x 11.2 inches
  • Weight: 88 lbs 
  • Warranty: 10-year standard warranty, covering all major components 

Why Choose EG4 FlexBOSS21? The FlexBOSS21 combines efficiency, durability, and innovation, making it a top choice for those seeking robust energy solutions. Its advanced monitoring and safety features provide reliable power and peace of mind for residential or commercial installations.

Elevate Your Energy Solutions Today: Explore the potential of the EG4 FlexBOSS21 Hybrid Inverter and enhance your energy management system.

Important Breaker Information for Pairing with the EG4 GridBoss

Each EG4 GridBoss unit includes:

  • 70A Breaker: Compatible only with the EG4 18kPV Hybrid Inverter.
  • Smart Port Breakers: Rated at 30A, 40A, 60A, and 80A. 

Please Note:

  • You must purchase a 90A Breaker separately for use with the EG4 FlexBoss21 Hybrid Inverter, you can easily add this to your cart directly from this page.
  • You must purchase a 50A Breaker separately for use with the EG4 12kPV Hybrid Inverter.
  • A 125A Breaker (sold separately) can be used with either the Smart Port or Gen Port.

Still have questions? Give us a call at 877-242-2792

Why Choose Green Vista Living

Why Choose Green Vista Living

At Green Vista Living, we’re passionate about providing top-quality renewable energy and eco-friendly products that not only enhance your life but also help protect the planet. We’ve built our business with one mission in mind: to be the go-to destination for renewable energy solutions, outdoor gear, and off-grid supplies. When you shop with us, you’re not just getting innovative products—you’re joining a community that’s committed to sustainability.

We Put Our Customers First

As a small, dedicated team, we care deeply about your experience. Unlike large, faceless online companies, Green Vista Living offers a personal touch in everything we do. We're here for you from start to finish—whether you need product advice, support after a purchase, or just have questions. Our knowledgeable customer service team is always just a phone call or email away, ready to assist you in any way possible.

We Share Your Passion for the Planet

Our love for the outdoors and sustainable living runs deep. Most of our team hails from the mountains of Colorado, where renewable energy and the environment are part of daily life. So when you call Green Vista Living, you’ll speak directly with an expert who understands both the technical side of renewable products and the lifestyle they support. Whether you’re looking for solar generators, EV chargers, or any of our eco-friendly offerings, you can trust us to guide you with expertise and passion.

Trusted Industry Experts

Our close partnerships with the best brands in renewable energy and outdoor gear give us insider knowledge that you won’t find anywhere else. We’ve taken the time to carefully select products that stand out for their quality and reliability. At Green Vista Living, we believe in understanding our products inside and out so that we can help you make the right choice with confidence.

More Reasons to Love Green Vista Living

  • Price Match Guarantee: Thanks to our partnerships, we offer the best prices around. If you find a better deal, we’ll refund the difference.
  • Free Shipping: We offer free shipping on most orders to the lower 48 U.S. states, making your shopping experience even easier.
  • 100% Secure Ordering: Our site uses SSL Encryption technology to keep your payment and personal information safe and secure.
  • Volume Discounts: For large orders, we’re happy to provide special pricing—just reach out for a custom quote.
  • Authorized Dealer: As an authorized dealer for all our brands, you’ll receive full manufacturer warranties with every order.

At Green Vista Living, we aim to make your renewable energy and outdoor experience as seamless and enjoyable as possible. With our unmatched customer service, expertise, and dedication to quality, you can shop with confidence, knowing you’re supporting a company that’s as committed to the planet as you are.

You may also like