Compatibility answer

Will the Epson 502 (T502) Cyan Ink Bottle work with the Epson EcoTank ET-2850 All-in-One?

Q: Will the Epson 502 (T502) Cyan Ink Bottle work with the Epson EcoTank ET-2850 All-in-One?

Yes. It works. Read the notes below before buying. Sources: https://epson.com/For-Home/Ink/Epson-T502-Ink-Bottles/i/T502, https://epson.com/For-Home/Ink/Epson-T502-Ink-Bottles/i/T502120-S, https://epson.com/For-Home/Ink/Epson-T502-Ink-Bottles/i/T502

Yes. Epson 502 (T502) Cyan Ink Bottle is listed as the original (OEM) part for this model.

Both records are reviewed against the manufacturers' sources; sources last checked 2026-10-07. Informational only: confirm with the manufacturer before buying.

Why

✓ Epson 502 (T502) Cyan Ink Bottle is listed as the original (OEM) part for this model.

Good to know

Uses 502, not 522.

Sources

Epson EcoTank ET-2850 All-in-One: specs from Epson US 502 ink bottles page (compatible printers), checked against the source 2026-10-07.
Epson 502 (T502) Cyan Ink Bottle: specs from Epson US (yield per ET-3850 spec page), checked against the source 2026-10-07.
Part listing: Epson US 502 ink page (compatible printers).

Check your exact setup

Other parts in the cart, current configuration (installed memory, fan brackets) and adapters can change the answer.

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Also checked with the Epson EcoTank ET-2850 All-in-One

Epson 502 (T502) Black Ink Bottle Yes

Everything checked with it

AI assistants and developers: the same answer, with a signed receipt, from check_compatibility at https://tetheredtrust.com/mcp or POST https://tetheredtrust.com/v1/check with existing_id: "epson-ecotank-et-2850", candidate_id: "epson-t502220-s".