Ink Bottle Refill for WF7710 ET2720 ET15000 WF3640 WF7110 WF7210

Our review of this 4-pack ink bottle refill set finds it best suited to small offices and home users who need an economical, high-volume refill option for compatible Epson EcoTank and select HP Smart Tank printers. The bottom line: this set delivers a full 400ml of replacement ink (100ml per bottle) with a claimed page yield up to 1500 pages at 5% coverage, and it is designed to avoid printhead clogging when handled properly. It is a practical choice for users who refill tanks regularly and value cost per page over brand-new sealed cartridges.

Key Features

• Wide compatibility: Works with many Epson EcoTank and Workforce models plus selected HP Smart Tank printers, so it fits mixed fleets without wasting supplies.
• Complete color set: Includes one bottle each of black, cyan, magenta and yellow for 400ml total, making it easy to refill all four channels in one purchase.
• Manufacturing and shelf info: Bottle caps show the manufacture date and unopened bottles have a two-year usable life, helping users manage stock rotation.
• Leak protection: Transparent top covers and aluminum seals on the bottle mouths prevent leaks during shipping and storage.
• Printhead protection: Formulated to reduce corrosion and clogging risk when used as directed, which preserves printer reliability.
• Economical yield: Page yield up to 1500 pages at 5% A4 coverage, offering lower cost per page than many cartridge options.

Who It's For

This refill set is ideal for home offices, small businesses and students who own compatible EcoTank or Smart Tank printers and refill tanks regularly to keep running costs down. Users who print a mix of documents and occasional photos will appreciate the convenience of a full CMYK pack that covers everyday needs.

It is not the best choice for users who require factory-original supplies for warranty reasons, or for those who need prefilled cartridges instead of manual refilling; technicians or shops that prefer syringes should note that refill injector syringes are not included with this set.

Pros & Cons

Pros

• Good value with 400ml total ink and an advertised high page yield for everyday printing.
• Broad compatibility across many Epson EcoTank and select HP Smart Tank models, reducing compatibility uncertainty.
• Packaging features such as aluminum seals and transparent covers limit leakage in transit.
• Formulation aims to prevent corrosion and clogging of the printhead when used correctly.

Cons

• Does not include refill injector syringes, so buyers need tools to transfer ink if their printer system requires them.
• Users who insist on OEM consumables may prefer manufacturer-branded ink for warranty or support reasons.

Specifications

Contents	4 bottles (1 Black, 1 Cyan, 1 Magenta, 1 Yellow)
Total volume	400ml (100ml per bottle)
Compatible printers	Selected Epson EcoTank, WorkForce, ET and HP Smart Tank models listed in product description
Page yield	Up to 1500 pages at 5% A4 coverage
Leak protection	Transparent top cover and aluminum film seal
Shelf life	Unopened bottles: 2 years from manufacture

Our Verdict

This 4-pack refill set is a sensible, cost-effective option for users of compatible EcoTank and Smart Tank printers who refill regularly and want lower running costs. It offers decent page yield, good packaging to prevent leaks and a formula intended to protect printheads, making it good value for routine document printing where OEM cartridges are not required.

Frequently Asked Questions

Are syringes included?
No, refill injector syringes are not included; buyers should have the proper refill tools available.

How long do unopened bottles last?
Unopened bottles have an expiration of two years from the manufacture date shown on the cap.

Will this clog my printer?
The ink is formulated to reduce corrosion and clogging when used correctly, but proper handling and storage are important to avoid issues.