EcoTank ET-3710
EcoTank ET-3710 owners refill with the Epson 502 family — 127 mL black bottle (up to 7,500 pages) and 70 mL color bottles (up to 6,000 pages each). The Clever Supplies compatible 502 bottles below match the ET-3710's keyed tanks color for color.
| Bottle | Type | Color | Approx. Yield |
|---|---|---|---|
| Epson T502120 (compatible) | Pigment ink bottle, 127 mL | Black | 7,500 pages |
| Epson T502220 (compatible) | Dye ink bottle, 70 mL | Cyan | 6,000 pages |
| Epson T502320 (compatible) | Dye ink bottle, 70 mL | Magenta | 6,000 pages |
| Epson T502420 (compatible) | Dye ink bottle, 70 mL | Yellow | 6,000 pages |
| Epson 502 Set of 4 (compatible) | Full bottle set | Black / Cyan / Magenta / Yellow | 7,500 black, 6,000 per color |
ET-3710 Ink Bottles — The 502 Lineup The ET-3710 is a cartridge-free EcoTank all-in-one; Epson lists 502 Black (127 mL) as its replacement ink, with the 502 colors at 70 mL. Per-bottle yields: black up to 7,500 pages (pigment ink), cyan/magenta/yellow up to 6,000 pages each (dye ink), per ISO/IEC 24712 with Epson's methodology.
Shopping tip for this model family: ET-3710, ET-3700 and ET-3760 all take 502 — if you run more than one of them at home or in a classroom, a single shelf of 502 bottles covers all three. The 522 bottles sold for ET-2720/ET-2800 do not fit any of them.
Choose singles for one low tank or the 4-bottle set for a full reset; lifetime warranty and 1-year free returns apply either way.