Skip to content
⚡ Sales Tax Free! (Except AZ, CA, FL, OH, IL) ⚡ FALL SAVINGS Are Here

Got Questions?Call Or Text An Expert:513-743-2829

Cart0

EG4 System Management Kit (Inverter & MID)

Authorized EG4 Dealer | Full Vendor Warranty Included

4.6/5 Based on 2,000+ Online Orders

Original price was: $6,599.00.Current price is: $5,400.00.

Save $1,199.00

Hurry! Only a few left in stock

Request a Quote
More payment options

Secure checkoutVISAMastercardAMEXPayPal

🚚 Shipping & Delivery TimeShipping timeline above is an estimate. Please live chat for precise ETAs and shipping costs.
🛡️ 30-Day Return GuaranteeCheck Policy
💲 Price Match Available
🏷️ Sales Tax Free! (Except AZ, CA, FL, OH, IL)
☀️ SUMMER DEALS ARE HERE – LOWEST PRICES GUARANTEED ☀️Summer prices are here! Shop now to grab the lowest prices of the season before the sun sets.
Description

EG4 System Management Kit (Inverter & MID)

Transform your power system with the EG4 System Management Kit, featuring the FlexBOSS21 Hybrid Inverter and GridBOSS MID. This powerhouse combination delivers unmatched performance, efficiency, and simplicity for both on-grid and off-grid applications, tailored for residential and commercial systems of any size.

Why this product is a must-have:

The EG4 System Management Kit is essential for maximizing energy independence and reliability, offering seamless integration of solar energy systems while reducing installation complexity and costs.

Standout Qualities:

  • High PV Input Capacity: FlexBOSS21 boasts a groundbreaking 21kW PV input capacity with 3 MPPTs, supporting multi-orientation solar arrays.
  • Smart Load Management: Advanced features allow for optimized energy flow and responsive operation, ensuring safety and scalability.
  • Real-Time Monitoring: In-depth remote monitoring via updated EG4 software provides unparalleled control and visibility over your power system.
  • Cost-Effective Design: The GridBOSS MID consolidates multiple components into one unit, reducing installation costs and complexity.
  • Reliable Performance: Capable of handling whole-home backup power, micro-grids, and sophisticated solar energy storage solutions, ensuring your energy needs are met.

Tech Specs | FlexBOSS21

  • SKU: INV027
  • Max. AC Input Power: 12000W
  • Output Power (with PV): 16000W @ 240V
  • Max. PV Input: 25000W
  • Efficiency: 94 – 97%
  • Operating Environment: -13ºF to 140ºF
  • Weight: 88 lbs (40 kg)
Spec Sheet:
User Manual:
UL1741 Certificate:

Tech Specs | GridBOSS MID

  • SKU: CNT103
  • Max. Continuous Current: 200A
  • Supported Inverters: EG4 12kPV, 18kPV, & FlexBOSS21
  • Operating Temperature Range: -40ºF to 140ºF
  • Weight: 55 lbs (25 kg)

Spec Sheet: Click Here

User Manual: Click Here

System Wiring Diagrams: Click Here

What’s Included:

  • 1 x EG4 FlexBOSS21 Hybrid Inverter

  • 1 x EG4 GridBOSS

  • User Manuals & Any Related Certifications

  • Fast, Reliable Shipping

  • Lifetime Customer Support

Product Specifications:

EG4 FlexBoss Specifications
Compatible Battery Types Lead-acid/ Lithium
Max. Charge/Discharge Power 12000W
Nominal Voltage 48VDC
Voltage Range 40 – 60 VDC
Recommended Battery Capacity Per Inverter >300Ah
Max Units in Parallel 16
Product Dimensions (HxWxD) 30.43 × 22.28 × 11.22 in. (750 × 520 × 285 mm)
Unit Weight 88 lbs. (52 kg)
Design Topology High Frequency – Transformerless
Relative Humidity 0 – 100%
Operating Altitude <6561 ft (<2000 m)
Operating Ambient Temperature Range -13° – 140°F (-25° – 60°C)
Storage Ambient Temperature Range -13° – 140°F (-25° – 60°C)
Noise Emission (Typical) <50dB @ 3 ft
Communication Interface RS485/Wi-Fi/CAN
Standard Warranty 10-year standard warranty*
Outdoor Rating NEMA 4X
EG4 GridBOSS Specifications
Communication Interface RS485/Wi-Fi/CAN
Internal Bus Rating 350A
Internal Fuse Rating 315A
Operating Altitude <6561 ft (<2000 m)
Relative Humidity 0 – 100%
Outdoor Rating NEMA 3R
Operating Ambient Temperature Range -40°F – 140°F (-40°C – 60°C)
Product Dimensions (HxWxD) 31.5×19.7×7 in (800×500×178 mm)
Unit Weight 55 lbs. (25 kg)
Standard Warranty 10-year standard warranty

Frequently Asked Questions

Do you offer free shipping?

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote.

How fast will my order arrive?

Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.

What's your return policy?

We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.

Can I talk to someone if I have product questions?

Absolutely! Our in-house product experts are here to help. Live chat or call us at 513-743-2829 for personalized advice before or after your purchase.

Do your products come with a warranty?

Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.

Are your products authentic and brand new?

Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

SHOP WITH PEACE OF MIND

Buy with confidence

VERIFIED STOREEvery product is authentic and brand new.
SECURESecure checkout and protected information.
SSL SECUREEncrypted browsing and checkout.

Over 2,000+ Online Orders

★★★★★ 4.64 (417)

★★★★★

Terry O

BLUETTI AC60P Portable Power Station | 504Wh, 600W

Happy with the Bluetti AC20P purchase. It’s lightweight and easy to carry, making it perfect for outdoor adventures. I love that it’s water-resistant and dust-proof, so I don’t have to worry about where I take it.

★★★★★

Diane

Harvest Right Freeze Dryer

Got a large freeze dryer just so we can make and preserve as much food as possible! I am very pleased with the quality of the freeze dried food and the variety of food that we can put into the system.

★★★★★

Josh

SunGoldPower Off-Grid Solar Kit

I set up the whole kit and they are performing really well. Highly recommend this solar kit if you’re planning to go off-grid solar. This kit can power my 3 bedroom home.

★★★★★

Ludwig

4-Season Deluxe Glamping Dome

Super customer service! Tony really helped me pick a glamping dome that fits my needs. He helped me with the buying process and made sure the glamping domes made it to my home.

★★★★★

Bobby K

Harvest Right Home Freeze Dryer

This is a cool little machine. Customer service went exceedingly well, the problem was corrected, and every batch has turned out as expected.

REAL REVIEWS, REAL RESULTS

Feedback From Our Customers

At Zenergy Recovery, we pride ourselves on delivering top-quality products and exceptional service to professionals and homeowners alike. Here’s what our customers have to say about their experiences with us.

View All Reviews Trustpilot customer rating

★★★★★

Kevin Leary

May 18, 2025

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

★★★★★

Bryan Cunningham

Off grid Kit · Dec 21, 2025

Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

0 reviews
0
0
0
0
0

There are no reviews yet.

Be the first to review “EG4 System Management Kit (Inverter & MID)”

Your email address will not be published. Required fields are marked *

You have to be logged in to be able to add photos to your review.