Is the EPSON 502 EcoTank Ink Ultra worth it?
A top pick in Office Electronics on Amazon (#5 when we checked, Nov 6, 2026)

Worth it if you have a listed Epson EcoTank or WorkForce model and want a genuine black refill with an advertised 7,500-page yield. The uniquely keyed EcoFit bottle is designed to make tank filling straightforward.
Good to know: If your printer is not one of the listed compatible models, look for ink specifically matched to its model number before buying.
High-yield EcoTank ink for fewer refill interruptions
The EPSON 502 EcoTank Ink Ultra is built around one useful design choice: an ultra-high-capacity bottle paired with a uniquely keyed EcoFit fill system. The bottle supplies black ink for compatible Epson EcoTank and WorkForce printers, while the keyed design is intended to make it easier to fill the correct tank.
That matters most during a routine refill. You are handling a bottle designed for this EcoTank system rather than trying to adapt a standard cartridge to a tank printer. The listing identifies this as genuine Epson ink, and Epson recommends genuine ink for print quality and performance. That gives you a straightforward match between the refill and the printer family it is made for.
The listed page yield is 7,500 pages, so the value is aimed at regular document printing rather than occasional, low-volume use. The bottle is black and works with a broad set of listed ET and ST models, including the ET-2750, ET-2760, ET-2850, ET-3750, ET-3760, ET-3850, ET-4850 and others. Check your exact model first. Once the match is confirmed, this is a simple way to keep a compatible tank printer supplied with black ink.
You get one genuine, ultra-high-capacity black bottle with an advertised 7,500-page yield and a keyed filling design. For regular printing, that makes the refill a practical alternative to buying standard cartridges repeatedly.
Great for
- Owners of listed Epson EcoTank ET printers
- WorkForce ST-2000, ST-3000, ST-4000, ST-C2100, or ST-C4100 users
- Frequent black-and-white document printers
- Shoppers who prefer genuine Epson ink
Maybe not for you if
- Your printer model is not listed
- You need color ink rather than a black refill
- You print only occasionally and do not need a high-yield bottle
The EPSON 502 EcoTank Ink Ultra is a sensible refill for owners of the listed Epson EcoTank and WorkForce printers, especially if you print documents often and want a high-yield black bottle. Its genuine Epson formulation and uniquely keyed EcoFit design keep the refill process aligned with the printer system, while the advertised 7,500-page yield supports longer stretches between purchases. Confirm your exact model before ordering, then this is a focused, convenient way to keep compatible printing ready.
Amazon shoppers rate it 4.8 out of 5 across 5,669 ratings. That is their number, not ours.
Quick answers before you buy
Which printers does this Epson 502 bottle fit?
It fits the listed Epson ET-2700, ET-2750, ET-2760, ET-2850, ET-3700, ET-3750, ET-3760, ET-3850, ET-4850 and other select ET and ST models. Check your exact model before ordering.
How many pages does it yield?
The listed page yield is 7,500 pages. Actual use can vary with document type and print settings.
Is this bottle black ink?
Yes. It is a genuine Epson black ink bottle for compatible EcoTank and WorkForce printers.
What is included?
The listing identifies one ultra-high-capacity genuine Epson black ink bottle, model T502120-S.
Does the bottle make filling easier?
Yes. The bottle uses a uniquely keyed EcoFit design intended for easy filling of the compatible color tank.
The spec sheet, for those who want it
| Ink Colour | Black |
|---|---|
| Page Yield | 7500 |
| Compatible Devices | Printer |
| Other Special Features of the Product | High Yield |
| Compatibility Options | Original Equipment Manufacturer |
| Color | Black |
| Cartridge Type | Genuine |
| Ink Colour | Black |
| Compatible Devices | Printer |
| Other Special Features of the Product | High Yield |
| Ink Base | Water |
| Additional Printer Functions | Print Only |
| Item Dimensions D x W x H | 2.3"D x 2.3"W x 6.4"H |
| Item Weight | 6.4 ounces |
| Number of Trays | 1 |
| Print media | Paper (plain) |
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