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Retail Price: $24.99
Our Price: $11.99

Save $13.00 (52% off retail price)

Buy 3 or more: $11.63 per cartridge

Buy More for Lower Price
Buy 3 to 5 $11.63 per cartridge
Buy 5 to 7 $11.39 per cartridge
Buy 7+ $11.15 per cartridge
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Order will be shipped on Monday if it is placed within 70 hrs and 9 mins.
Free shipping over $50 and .

About HP 21 Ink Cartridge

Replacement HP 21 Ink Cartridge - C9351AN - Black

CompAndSave offers affordable replacement HP 21 ink cartridge that boasts genuine-like quality and satisfaction. This cartridge perfectly works as the original HP C9351AN ink cartridge without fail!

  • MADE WITH PRECISION. Every ink cartridge we sell is proven and tested to work like OEM cartridges, with a tested shelf-life of at least 20 months. Our HP printer ink 21 cartridge is professionally engineered to ensure that CompAndSave's cartridges will function like original ones—from installation to print quality.
  • LOW PRICE, SAME QUALITY. The print capacity and quality of CompAndSave's cartridges match the original HP printer cartridges, but at a lesser price without sacrificing the quality. Purchasing an HP 21 printer cartridge from us means you get to save $13.00 (52% off retail price), talk about getting the most of your money!
  • BUMP UP YOUR SAVINGS. Want to enjoy even bigger savings? Purchase our HP 21 ink cartridge and HP 22 color ink cartridge in bulk.
  • NEXT DAY SHIPPING. HP C9351AN ink cartridge orders placed before 2:00 p.m. PST will be shipped out the same business day. Visit our Shipping Policy for more information.
  • FREE SHIPPING. For U.S. orders, checking out $50 or more means the shipping fee is on us!
  • SATISFACTION GUARANTEE. We offer a FULL refund within ten days based on the delivery date of your CompAndSave products. We even issue refunds and store credits up to 365 days from purchase. That is how confident we are in the quality of our replacement HP 21 black ink cartridge. Make sure to read our Return Policy for more details.
  • ECO-FRIENDLY SOLUTIONS. Did you know that our replacement or remanufactured cartridges are environmentally friendly? Instead of throwing away empty original HP cartridges, our manufacturer meticulously recycles them to function exactly like the originals. By purchasing our replacement HP 21 ink cartridge, you will not only save a ton of money, but you will also be helping to preserve the environment.
  • WILL NOT VOID PRINTER WARRANTY. Using replacement, compatible, or remanufactured printer cartridges will never void your printer warranty. To know more, check our Ink Knowledge Base page or contact us for other concerns.

Go ahead and find your printer from the compatible printer list for HP 21 ink cartridge provided below. Take advantage of our great prices for HP C9351AN ink cartridge today. SAVE more now!

All ink & toner come with a one-year 100% satisfaction guarantee.
Our products will never void your printer's warranty.

HP 21 Ink Cartridge Specifications

SKU INK-HP-C9351AN
Product Type INK
Replaces OEM # C9351AN
Color Black
Ink Type Pigment
Product Capacity Standard
Ink Volume 5 ml
Approximate Page Yield 190
Cost per page 6.31 cents
Number of pieces 1
Product Shelf Life 18-24 months

HP 21 Ink Cartridge Compatible Printers

Replacement HP 21 Ink Cartridge Reviews

22 Customer Reviews
4.8 out of 5 stars
91% Recommend
this product
5 stars 18
4 stars 3
3 stars 1
2 stars 0
1 star 0
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  • its does the job
    Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Jan 11, 2024
    By: Verified Buyer
    IF I did not like your service and the way you do sales and delivery I would not have used you two times. One thing I do not need is more than one add to use your service a month. Do not flood me with adds I only use so much ink and your asking for my order just waste my time and makes me think about unsubcribing?? from your mail
    Was this review helpful?
  • No problem with the ink cartridge.
    Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Nov 15, 2023
    By: Verified Buyer
    The HP 21 ink cartridge works great.
    Was this review helpful?
  • Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Nov 16, 2022
    By: Verified Buyer
    I was not able to get it to work at all but I believe it was my own fault.
    Was this review helpful?
  • Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Sep 30, 2022
    By: Verified Buyer
    The cartridge fits and preforms just like a HP cartridge but at a considerable less cost.
    Was this review helpful?
  • Why spend 3 times the amount for ink?!
    Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Apr 5, 2022
    By: Verified Buyer
    I have not had any issues at all with the Comp and Save inks. They are about a third of the cost of name brand inks - even on Amazon. Why spend 3 times the amount for name brand? And- especially right now when everything else is so expensive. I've been ordering from Comp and Save for about 10 years now! I've saved a whole lot of money doing so!
    Was this review helpful?
  • Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Mar 4, 2022
    By: Verified Buyer
    working fine nice dark letters
    Was this review helpful?
  • More than happily satisfied.
    Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Jan 13, 2022
    By: Verified Buyer
    The cartridges arrived fine, pkgd well, and worked fine right outa the chute. They replaced a brand new HP unit that died pretty quick, and that cost a whole LOT more $$$.
    Was this review helpful?
  • You're My Place To Go For Products!!!
    Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Dec 8, 2021
    By: Verified Buyer
    Arrived in reasonable amount of time at a good price!!!
    Was this review helpful?
  • great price
    Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Aug 12, 2021
    By: Verified Buyer
    fit perfect
    Was this review helpful?
  • Best company in the world!
    Review for Replacement HP 21 Ink Cartridge - C9351AN - Black
    Jul 13, 2021
    By: Verified Buyer
    I needed ink. I ordered ink. And ink was delivered very quickly. It was amazing. Also, Trump won. By a Lot
    Was this review helpful?