Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: Urban Supply's image for its "EG4 FlexBOSS21 Inverter V.1.1 & EG4-GridBOSS MID V3.1" bundle (SKU BNDL-E0019-3.1), a listing sold in one configuration: the same contents as this ShopSolar kit, one FlexBOSS21 and one GridBOSS. Seller listing image of the same kit contents, not ShopSolar's and not a manufacturer-issued photo.Paid link · price checked
From the seller's published contents list.
| Qty | Part | Type | Product page |
|---|---|---|---|
| ×1 | EG4 FlexBOSS21 Hybrid Inverter | Inverter | View product › |
| ×1 | GridBOSS MID V3.1 DetailsThe listing prints "GridBOSS MID V3.1", which does not identify one exact model, so no standalone record is linked. Distributor product page: ShopSolar listing: EG4 FlexBOSS21 Hybrid Inverter + GridBOSS MID V3.1 Bundle | 48V Split Phase | 21kW Solar Input (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier document | Other part |
Stock keeping unit ShopSolar prints for this kit option in its listing's product data ("sku":"BNDL-E0019-3"). The listing does not say whether it is the store's own code or the maker's.
Distributor product page: ShopSolar listing: EG4 FlexBOSS21 Hybrid Inverter + GridBOSS MID V3.1 Bundle | 48V Split Phase | 21kW Solar Input (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier documentLocation: Embedded product data, variant SKU
Documented
3 specs not documented yet: rated capacity, usable capacity, dimensionsHelp fill in ›
Published claims and calculations are not independently tested lifetime output.
The kit as ShopSolar's listing title names it, captured October 1, 2026. Seller statement; the parts are listed one by one under included parts.
Distributor product page: ShopSolar listing: EG4 FlexBOSS21 Hybrid Inverter + GridBOSS MID V3.1 Bundle | 48V Split Phase | 21kW Solar Input (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier documentLocation: Listing title
Documented
Published claims and calculations, not independent test results.
Archived copy captured on 2026-10-01.
Location: listing title, variant selector, description and the embedded product data
Retrieved
ShopSolar's own product page, captured October 1, 2026. It establishes what this affiliate store lists, its kit options, the SKU, price and availability its product data prints for each option, and the contents it describes. It is a seller statement throughout: not a manufacturer datasheet, and it establishes no manufacturer part number, test condition or certification.
EG4 FlexBOSS21 Hybrid Inverter + GridBOSS MID V3.1 Bundle | 48V Split Phase | 21kW Solar Input
No warranty terms on file.
Affiliate links below. Affiliate disclosure
Price for one unit, as listed by the seller. Does not include shipping. Price checked .
The seller lists this as a new unit. Condition checked .
Distributor product page: ShopSolar listing: EG4 FlexBOSS21 Hybrid Inverter + GridBOSS MID V3.1 Bundle | 48V Split Phase | 21kW Solar Input (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier documentPrices we read at ShopSolar · 24 readings · no change in our readings since
Since · Listing price (USD)
A break in a line is a gap in our readings: no price is drawn for days we did not read.
| Checked (UTC) | Seller | Price |
|---|---|---|
| Oct 1, 2026, 11:46 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 4, 2026, 1:06 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 5, 2026, 1:05 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 6, 2026, 1:05 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 8, 2026, 1:06 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 11, 2026, 1:05 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 15, 2026, 1:06 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 16, 2026, 1:06 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 17, 2026, 1:16 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 20, 2026, 9:17 PM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 22, 2026, 1:16 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 24, 2026, 1:06 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 26, 2026, 1:07 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 28, 2026, 1:26 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 29, 2026, 1:16 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 30, 2026, 1:26 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Oct 31, 2026, 1:27 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Nov 1, 2026, 1:07 AM PDT | ShopSolar Paid link. | $5,473.88 |
| Nov 3, 2026, 1:06 AM PST | ShopSolar Paid link. | $5,473.88 |
| Nov 4, 2026, 1:06 AM PST | ShopSolar Paid link. | $5,473.88 |
| Nov 5, 2026, 1:06 AM PST | ShopSolar Paid link. | $5,473.88 |
| Nov 6, 2026, 1:07 AM PST | ShopSolar Paid link. | $5,473.88 |
| Nov 8, 2026, 1:16 AM PST | ShopSolar Paid link. | $5,473.88 |
| Nov 12, 2026, 1:26 AM PST | ShopSolar Paid link. | $5,473.88 |
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No certificates on file. Certificate guide
No sourced accessories or replacement parts listed yet.
Manufacturer SKU BNDL-E0019-3 · US market
No historical observations recorded yet.
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No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice
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Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.
