U.S. Remanufactured for HP 728 300ml (F9K15A) Yellow Ink Cartridge

Remanufactured for HP 728 Yellow Ink Cartridge 300 ml (F9K15A) – DesignJet T730/T830

Regular price
$118.29
Sale price
$90.99
Unit price
per 
HP price $255.00
Our price $90.99 Save 64%

You save $164.01 vs. HP F9K15A at HP.com (price checked Oct 20, 2026).

  • In stock. Orders placed by 4 PM ET Mon–Fri ship the same day.
  • Free shipping on this item (USPS, 2–5 business days)
  • 1-year 100% satisfaction guarantee — replacement or refund

Product Specifications

SKU11207H
OEM Part NumberF9K15A
Cartridge TypeInk Cartridge
Compatible BrandHP
ColorYellow
ConditionRemanufactured
Warranty100% Satisfaction Guarantee

Product Description

HP 728 Yellow 300 ml (F9K15A) at a glance: a 300 ml yellow cartridge for the HP DesignJet T730 and T830 MFP (24-in and 36-in). Remanufactured: a genuine HP 728 shell, cleaned, refilled and print-tested. Backed by a 1-year 100% satisfaction guarantee; orders by 4 PM ET (Mon–Fri) ship the same day from Long Island, NY.

Key Facts

Condition Remanufactured (genuine OEM shell, cleaned, refilled, print-tested)
Replaces OEM part F9K15A (HP 728 Yellow, 300 ml)
Ink capacity 300 ml (same as the original HP 728 300 ml cartridge)
Guarantee 1-year 100% satisfaction guarantee: replacement or refund
Shipping Same business day when ordered by 4 PM ET (Mon–Fri); free shipping on orders over $50

What's in the Box

  • 1 × HP 728 Yellow (F9K15A) remanufactured ink cartridge — 300 ml

Compatible Printers (3 models)

  • HP DesignJet T730 (36-in)
  • HP DesignJet T830 MFP (24-in)
  • HP DesignJet T830 MFP (36-in)

Don't mix these up: HP 728 comes in more than one size, and every size of the same color fits the same slot. HP 728 is not the same as HP 711 (DesignJet T120/T520) or HP 712 (DesignJet T210/T630/T650).

Not sure? Look up your exact model on our Find Ink by Printer page, or contact us and we'll confirm the right cartridge for you.

Part Numbers & Also Known As

This cartridge replaces or is also searched for as: F9K15A, HP 728 yellow, HP728 yellow, HP 728 300ml yellow, HP 728 yellow 300 ml, DesignJet T730 yellow ink, DesignJet T830 yellow ink

Chips, Printer Messages & Installation

Installing: open the ink cartridge cover, lift out the empty cartridge and gently shake the new one before pushing it into the matching color slot until it seats. Close the cover and wait for the printer to finish checking the ink.

Non-HP supply messages: DesignJet printers display a notice when a refilled or non-HP cartridge is installed. Confirm the message on the front panel to keep printing. If a cartridge is not detected, reseat it and check the chip contacts are clean.

Printheads are separate: DesignJet printheads are replaced on their own schedule, not with each ink cartridge. If a color is missing after a new cartridge, run the printhead cleaning from the front panel.

Still stuck? See our guide to fixing a cartridge that isn't recognized or contact us and we'll make it right.

Remanufactured vs. Compatible vs. Original

Original (OEM) cartridges are new from the printer brand and cost the most. Remanufactured cartridges, like this one, start as genuine original shells (including the original chip) that are cleaned, refilled with high-quality ink and print-tested, so they fit and communicate like the original at a fraction of the price. Compatible cartridges are built new by a third party with their own chip. Castle Ink sells remanufactured inkjet cartridges and compatible (newly manufactured) toner.

Other Options for the Same Printers

Frequently Asked Questions

Do I have to replace all colors at once?

No. Each color is a separate cartridge, so replace only the one the printer reports as empty.

Do the 130 ml and 300 ml HP 728 cartridges fit the same slot?

Yes. The 300 ml version simply lasts longer and costs less per milliliter.

Does it include a printhead?

No. The T730 and T830 use the separate HP 729 printhead (F9J81A), which is replaced on its own schedule.

Will this void my printer warranty?

No. Under the U.S. Magnuson-Moss Warranty Act, a manufacturer can't void your printer warranty just because you used a third-party or remanufactured supply. If a non-original supply directly caused damage, that specific repair might not be covered.

How long can I store it?

Store it sealed, at room temperature and out of direct sunlight, and use it within about 24 months for best results. Once opened, install it promptly.

When will my order ship?

Orders placed by 4 PM ET, Monday through Friday, ship the same business day from Long Island, NY, by USPS (2–5 business days). Expedited 1–2 day delivery is available at checkout, and shipping is free on orders over $50.



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