EG4 FlexBOSS21 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input

EG4 FlexBOSS21 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input

Marsoni

M251S

$1775.00

Get it in 3 business days with 1 day shipping. Friday, May 29

EG4 FlexBOSS21 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV InputEG4 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

Easy Shipping

Quick Dispatch:

Your EG4 FlexBOSS21 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your EG4 FlexBOSS21 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input ships.

Need Help?
Questions about EG4 FlexBOSS21 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for EG4 FlexBOSS21 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

I used this to change the oil on my BMW M8 with the S63 engine. It was a perfect fit. It extended far enough onto the filter housing to be quite secure with no risk of slipping off and stripping the housing. It was snug on the housing and did not bind up due to having a loose fit. The tool feels well-built and I suspect it will outlive me given my occasional personal use. It would still probably hold up well even for daily shop use as long as it was not abused (repeatedly dropped, slammed around, etc).

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on September 8, 2025