Expression ET
Epson Expression ET printers are the home and home-office side of the EcoTank family — cartridge-free supertank machines that refill from ink bottles instead of cartridges. Every Expression ET model in this section runs on the same Epson 502 ink bottle family: a 127 mL pigment black bottle rated for up to 7,500 pages and 70 mL dye color bottles rated for up to 6,000 pages each (ISO/IEC 24712). Find your model below and refill with Clever Supplies compatible 502 bottles — same keyed EcoFit nozzle fit, backed by a lifetime warranty.
| 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 |
Expression ET Ink — One Bottle Family for the Whole Line The Expression ET range was built for households and home offices that print often and hate running out of ink mid-job. Instead of cartridges, these printers carry large refillable tanks. The 502 bottle family covers every Expression ET model we list: ET-2700, ET-2750, ET-2760, ET-3700, ET-3710, ET-3760 and ET-4760.
Each 502 black bottle holds 127 mL of pigment ink — the pigment formula is what keeps text sharp and smudge-resistant on plain paper — and yields up to 7,500 pages. The cyan, magenta and yellow bottles hold 70 mL of dye ink each and yield up to 6,000 pages per color. Yields follow the ISO/IEC 24712 pattern with Epson's methodology, so the numbers are comparable model to model.
One warning worth repeating: 502 is not 522. The smaller EcoTank bottles (522) fit a different group of printers (ET-2720, ET-2800, ET-4800) and are keyed differently — a 522 bottle will not seat in a 502 printer's tank, and the yields run the other way (522 black is 4,500 pages). Check your model number on the printer's front panel before you order; if it is listed on this page, 502 is your family.
Clever Supplies compatible 502 bottles are filled to the same volumes, use the same keyed nozzle design so each color only fits its own tank, and carry our lifetime warranty with 1-year free returns.
This series also covers the first-generation EcoTank models that refill with 664 ink bottles — the ET-2500, ET-2550, ET-2600 and ET-2650 (664 in all four positions: black up to 4,000 pages, colours up to 6,500 pages each) and the ET-3600, whose colours are 664 while its black is the 774 bottle. Model pages below state each printer's exact bottle set; the families are not interchangeable, so start from your model page.