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Paid link · price checked
From the seller's published contents list.
Stock keeping unit SanTan Solar's store catalog gives for this kit ("sku": "KIT-FORT-DUO21K-32KWH-14.4KW-TIGO-F"). The listing does not say whether it is the store's own code or the maker's.
Distributor product page: SanTan Solar store catalog row for SKU KIT-FORT-DUO21K-32KWH-14.4KW-TIGO-F: Fortress 16KW Duo 21 | 32KWH Storage | 14.4KW Array | Tigo Rapid Shutdown | Kit (rows file store-rows-santan-solar-2026-10-27.json, read 2026-10-27T06:25:03.915Z) Paid link.CheckedLocation: Store catalog row, 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 contents as SanTan Solar's listing "Fortress 16KW Duo 21 | 32KWH Storage | 14.4KW Array | Tigo Rapid Shutdown | Kit" prints them in its description, read October 27, 2026. Seller statement; the parts are listed one by one under included parts.
Distributor product page: SanTan Solar store catalog row for SKU KIT-FORT-DUO21K-32KWH-14.4KW-TIGO-F: Fortress 16KW Duo 21 | 32KWH Storage | 14.4KW Array | Tigo Rapid Shutdown | Kit (rows file store-rows-santan-solar-2026-10-27.json, read 2026-10-27T06:25:03.915Z) Paid link.CheckedLocation: Listing description, contents list
Documented
Published claims and calculations, not independent test results.
Revision date not established.
Location: Original source record
Retrieved
One row of SanTan Solar's store catalog (an approved direct affiliate partner), read by Engineering at 2026-10-27T06:25:03.915Z under the owner's partner exception and kept as store-rows-santan-solar-2026-10-27.json: listing address, SKU KIT-FORT-DUO21K-32KWH-14.4KW-TIGO-F, title, price, currency, availability, the store's category and attribute words, and the listing's short description and description as plain text (tags dropped, cut at 6,000 characters). SanTan's site answers the research fetcher with a 403 challenge, so no page was captured. A seller statement; it establishes what the store sells, its price and the kit contents the store prints, not a manufacturer specification.
Distributor product page: SanTan Solar store catalog row for SKU KIT-FORT-DUO21K-32KWH-14.4KW-TIGO-F: Fortress 16KW Duo 21 | 32KWH Storage | 14.4KW Array | Tigo Rapid Shutdown | Kit (rows file store-rows-santan-solar-2026-10-27.json, read 2026-10-27T06:25:03.915Z) Paid link.CheckedFortress 16KW Duo 21 | 32KWH Storage | 14.4KW Array | Tigo Rapid Shutdown | Kit
No warranty terms on file.
Affiliate links below. Affiliate disclosure
Price for one unit, as listed by the seller. Does not include tax and shipping. Price checked .
The seller lists this as a new unit. Condition checked .
Distributor product page: SanTan Solar store catalog row for SKU KIT-FORT-DUO21K-32KWH-14.4KW-TIGO-F: Fortress 16KW Duo 21 | 32KWH Storage | 14.4KW Array | Tigo Rapid Shutdown | Kit (rows file store-rows-santan-solar-2026-10-27.json, read 2026-10-27T06:25:03.915Z) Paid link.CheckedPrices we read at SanTan Solar · 13 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 26, 2026, 11:25 PM PDT | SanTan Solar Paid link. | $20,682 |
| Oct 29, 2026, 1:16 AM PDT | SanTan Solar Paid link. | $20,682 |
| Oct 30, 2026, 1:26 AM PDT | SanTan Solar Paid link. | $20,682 |
| Oct 31, 2026, 2:11 AM PDT | SanTan Solar Paid link. | $20,682 |
| Nov 1, 2026, 1:06 AM PDT | SanTan Solar Paid link. | $20,682 |
| Nov 2, 2026, 2:31 AM PST | SanTan Solar Paid link. | $20,682 |
| Nov 3, 2026, 1:06 AM PST | SanTan Solar Paid link. | $20,682 |
| Nov 4, 2026, 1:06 AM PST | SanTan Solar Paid link. | $20,682 |
| Nov 5, 2026, 1:06 AM PST | SanTan Solar Paid link. | $20,682 |
| Nov 6, 2026, 1:06 AM PST | SanTan Solar Paid link. | $20,682 |
| Nov 8, 2026, 4:31 AM PST | SanTan Solar Paid link. | $20,682 |
| Nov 11, 2026, 3:31 AM PST | SanTan Solar Paid link. | $20,682 |
| Nov 12, 2026, 1:25 AM PST | SanTan Solar Paid link. | $20,682 |
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Own one? A verified review needs a receipt and a serial number photo, and counts 19× in the owner rating.
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No certificates on file. Certificate guide
No sourced accessories or replacement parts listed yet.
Manufacturer SKU KIT-FORT-DUO21K-32KWH-14.4KW-TIGO-F
No historical observations recorded yet.
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Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.
