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  3. Compatible Twinpack of Epson T6641 Black Ink Bottles

Compatible Twinpack of Epson T6641 Black Ink Bottles

£10.49 inc VAT
88 In Stock
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  • Money Back Guarantee
  • Stock up, worry free! Happily store these for 1 year
Multi-buy discount
2 - 3 £10.18 each
4+ £9.96 each

Where do I find my printer model?

The model is nearly always found on the front or top of your printer. It usually has the manufacturer name followed by letters & numbers.

Check this ink fits your printer:

This is a twinpack of compatible Epson T6641 black ink bottles, for use with your Epson Eco-Tank printer.

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Colour Compatibility Page Yield
Black Compatible 8000
This pack contains:
2 × Compatible Epson T6641 Black Bottle 8000 pages
Save £1.49 compared to buying individually! Only 0.13p per page.

Compare With Similar Epson Ink

This item: Compatible Twinpack of Epson T6641 Black Ink Bottles
Customer Rating
(3 reviews)
(2 reviews)
(5 reviews)
Pack Contents 2x ink cartridges 1x ink cartridges 1x ink cartridges
Contains Black Black Black
Page Yield
Black 16000 pages
4000 pages 4000 pages
Running Cost 0.13p per page 0.14p per page 0.22p per page
Type Money Saving Compatible Money Saving Compatible Genuine Epson Product
Product Guarantee Full 1 Year Moneyback Guarantee Full 1 Year Moneyback Guarantee Full 1 Year Moneyback Guarantee
Delivery Free Delivery Free Delivery Free Delivery

Why choose this ink?

Each of the two compatible T6641 black ink bottles hold 70mls of ink, which is enough for you to print up to 4,000 pages of black and white prints with each bottle.

When the black ink runs low, it's easy to refill the printers tank. Simply open the small box on the side of your Eco-Tank printer and top it up using the bottle. Please follow the instructions provided carefully.

The compatible T6641 inks are packaged in their own individual boxes so if you're not ready to use it straight away you can store it for up to 6 months without its quality being affected.

Everything here at Stinkyink is tested, has our super 12-month quality assured guarantee and comes with our free, fast delivery.


Capacity 140ml of ink
Page Yield 8000 pages
Running Cost 0.13p per page

Running Cost

This value is calculated from manufacturer's estimates of how many pages a cartridge will print, and should only be used to compare cartridge running costs.

Page yields are estimated using the ISO standard of 5% coverage on a plain A4 page, which is roughly the length of a short letter.

Colour Black
Compatibility Compatible
Range Epson T664X ink cartridge range
Brand Third Party
Condition New

Customer Reviews

Customer reviews for the Compatible Twinpack of Epson T6641 Black Ink Bottles
5 star
4 star
3 star
2 star
1 star
Average customer rating
(3 reviews)
October 21, 2020
by Mark

Inks fine but everything absolutely crushed in the bag as boxes are just in a mailing bag.

August 18, 2019
by Mrs Eve Needham

Excellent service as usual. Ink worked well with no problem.

August 05, 2019
by Mrs Eve Needham

Excellent service as always. Received within a couple of days. First time I have ordered this ink for my Epsom ET-4500. Have used printer without any problems. Highly recommended.
PS: I have had a number of printers over the years and used Stinkyink.com for cartridges. Fortunately, the Epsom EcoTank printer doesn't need replacement ink very often as it prints 1000's of copies before requiring refills.


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Will this cartridge work in my Epson printer?

Use our 'Check this ink fits your printer' box at the top of this page to confirm this cartridge is suitable for your printer model. In most cases the model number is written on the front of your printer.

Note: These cartridges will only work in printers purchased in the UK and Europe. Printers purchased outside of these zones will have different coding and electronics.

How much ink is in a Epson T664X Compatible cartridge?

We don't advise on the number of millilitres, as not every cartridge prints using the same droplet size, so two cartridges for two different printers may both have 5ml of ink, but one will print more than the other. Instead, more accurately, the industry standard is based on printing 5% of an A4 page.

How many pages will this Epson T664X Compatible cartridge print?

This is known as page yield. The number of pages you'll be able to print depends on the cartridge you purchase and the kind of printing you do. The page yields shown higher up the page are based on printing 5% of the area on an A4 page.

Learn more about how many pages you'll be able to print with this cartridge in this article.

Will this compatible ink cartridge work with my printer?

Providing you haven't had a recent firmware update (see question below), you shouldn't have a problem. The chips on our cartridges are updated regularly to avoid firmware interference, but in the unlikely event your printer did reject the cartridges, you are covered by our 12-month guarantee.

What are firmware updates?

Firmware updates are updates put through your printer by the printer manufacturers (e.g. HP, Epson, Canon etc.). The update can contain code that stops any third-party cartridges from working, so that you can only use original brand cartridges. In most cases you cannot undo this update, but you can switch updates off to prevent it.

Do the cartridges display ink levels?

Yes, these cartridges are designed to work no differently from originals, so all the same functions should be available.

The cartridges look different to the originals or ones I have had before, will they fit my printer?

Third-party cartridges must be designed to differ slightly from the originals, to fit in with legal copyright requirements. However, the cartridges are still made to fit in your printer and are tested rigorously to ensure compatibility with your printer. We use a small number of trusted suppliers and while the look of the cartridges can vary slightly from each one, they will fit your printer.


Buy More & Save!

All inks can be stored for 1 year

It's best to keep a spare, so you'll save money when buying 2 of any item.

These inks can be stored for 1 year without affecting performance + are covered by our money back guarantee to give you full peace of mind.

Plus there's Free Delivery on everything!