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FREE next-day delivery on everything
 

Delivery Options

TimescaleMethodCharge
Free next-day 98% of orders arrive the next working day Royal Mail 1st class * FREE
Guaranteed next-day Guaranteed to arrive on the next working day

Guaranteed next-day

In the extremely unlikely event that the courier does not attempt delivery on the next working day, you will be given:

- A 10% refund of the total order value

- A refund of £2.95 next-day courier charge

- A further voucher giving you 10% off your next order

Guaranteed next-day

In the extremely unlikely event that the courier does not attempt delivery on the next working day, you will be given:

- A 10% refund of the total order value

- A refund of £2.95 next-day courier charge

- A further voucher giving you 10% off your next order

 Courier £2.95
Guaranteed pre-12 Guaranteed to arrive before 12 noon on the next working day

Guaranteed pre-12

In the extremely unlikely event that the courier does not attempt delivery before 12 noon on the next working day, you will be given:

- A 10% refund of the total order value

- A refund of £7.95 pre-12 courier charge

- A further voucher giving you 10% off your next order

Guaranteed pre-12

In the extremely unlikely event that the courier does not attempt delivery before 12 noon on the next working day, you will be given:

- A 10% refund of the total order value

- A refund of £7.95 pre-12 courier charge

- A further voucher giving you 10% off your next order

 Courier £7.95

* Depending on size and value, some orders may be upgraded from Royal Mail to Courier.


Delivery Schedule

Order placedExpect to receive
Monday, before 5:15pm Next day (Tuesday)
Tuesday, before 5:15pm Next day (Wednesday)
Wednesday, before 5:15pm Next day (Thursday)
Thursday, before 5:15pm Next day (Friday)
Friday, before 5:15pm Monday
Saturday or Sunday Tuesday

Bank holidays

We do not despatch or deliver orders on bank holidays

Highlands and Islands

Deliveries may take 2 to 3 days longer to arrive

International deliveries

We only deliver to addresses within the UK.

Lowest online price guaranteed
We beat or match all other retailers Lowest price guaranteed
and FREE next-day delivery

Lowest online price guaranteed.

If within 7 days of your purchase you find the same product (brand and model) being offered online at a lower price, we will refund 100% of the difference. For further info, click here.

Lowest online price guaranteed

To claim against our low price guarantee simply contact us and include the following information:

  • Your full name, postal address, email address and order number
  • The product code of the item you found cheaper on a competitor's site
  • The exact page on the competitors website where you found the product cheaper
  • Please note: unfortunately we are unable to offer this guarantee on printers and hardware

Our low price guarantee applies only to products available from online UK retailers. It excludes products that are not new and immediately available, online promotions such as special, bonus or free offers that are not at everyday prices and products which are sold under different terms and conditions, such as special financing, contract pricing or volume discount pricing.

Basically, the identical items must be in stock and ready for immediate dispatch on another VAT registered UK mainland based website.

Free next-day delivery

Our free delivery option typically uses Royal Mail first class. In 98% of cases, orders placed on Monday to Friday before 5:15pm will arrive on the next working day. To see other delivery options and our delivery schedule click here.

Delivery Schedule

Orders placed before 5:15pm on Monday to Thursday - receive next day

Orders placed before 5:15pm on Friday - receive on Monday

Orders placed on Saturday or Sunday - receive on Tuesday

Delivery Options

Free next-day

98% of orders arrive the next working day. Typically uses Royal Mail 1st class, though some orders may be upgraded to courier.

Guaranteed next-day (£2.95)

Uses courier. In the extremely unlikely event that delivery isn't attempted on the next working day, you will be given:

  • A 10% refund of the total order value
  • A refund of £2.95 courier charge
  • A further voucher giving you a further 10% off your next order

Guaranteed pre-12 (£7.95)

Uses courier. In the extremely unlikely event that delivery isn't attempted before 12 noon on the next working day, you will be given:

  • A 10% refund of the total order value
  • A refund of £7.95 courier charge
  • A further voucher giving you a further 10% off your next order

12 month warranty on printer cartridges

If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

Free returns on printer cartridges

Whatever the reason for returning printer cartridges to Cartridge Save, you will never pay a penny for postage.

Lowest online price guaranteed

We pride ourselves in giving our customers the best possible value for money. To ensure you are not out of pocket, we will refund 100% of the difference, if within 7 days of your purchase you find the same product (brand and model) being offered online at a lower price.

To claim against our low price guarantee simply contact us and include the following information:

  • Your full name, postal address, email address and order number
  • The product code of the item you found cheaper on a competitor's site
  • The exact page on the competitors website where you found the product cheaper
  • Please note: unfortunately we are unable to offer this guarantee on printers and hardware

Our low price guarantee applies only to products available from online UK retailers. It excludes products that are not new and immediately available, online promotions such as special, bonus or free offers that are not at everyday prices and products which are sold under different terms and conditions, such as special financing, contract pricing or volume discount pricing.

Basically, the identical items must be in stock and ready for immediate dispatch on another VAT registered UK mainland based website.

Compatible High Capacity Black HP 21XL Ink Cartridge - (Replaces HP C9351CE)

96%
10 reviews

Average Customer Review:

  1. 5 Star 8
  2. 4 Star 2
  3. 3 Star 0
  4. 2 Star 0
  5. 1 Star 0
See all 10 reviews
| Ask a question
Loading...
2.8p per page (1 pack) Pack of 1 cartridges
Page yield:
  1. 475 pages
12ml

Pack Contains:

Black - 475 pages
12ml

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

High Capacity
£13.29 (£15.95 inc VAT)

FREE next-day delivery

Multi-buy discount
  • Buy more, save money
  • 2 £11.28 (£13.54 inc VAT)
  • 3+ £10.44 (£12.53 inc VAT)
2.8p per page (1 pack) Pack of 1 cartridges
Page yield:
  1. 475 pages
12ml

Pack Contains:

Black - 475 pages
12ml

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

High Capacity
  • 96%
    10 reviews

    Average Customer Review:

    1. 5 Star 8
    2. 4 Star 2
    3. 3 Star 0
    4. 2 Star 0
    5. 1 Star 0
    See all 10 reviews
    | Ask a question
  • Premium brand recycled ink cartridge

    Made using recycled HP cartridges, this cartridge is a direct replacement for the HP version. Manufactured to strict quality standards, our premium cartridges produce high quality prints and are very reliable — in fact, we use them in our offices and recommend them to friends, family and other businesses.

  • Premium brand recycled ink cartridge

    Premium brand recycled ink cartridge

    Made using recycled HP cartridges, this cartridge is a direct replacement for the HP version. Manufactured to strict quality standards, our premium cartridges produce high quality prints and are very reliable — in fact, we use them in our offices and recommend them to friends, family and other businesses.

  • Replaces Genuine HP 21XL
  • High capacity black ink cartridge
  • 3-year warranty
    3 year warranty on Cartridge Save Own Brand
    "If within three years of purchase you have any problem whatsoever with a Cartridge Save own-brand product, we will happily offer either a replacement or a refund."
    Our returns process is really easy to do, and will only take a few moments of your time. Though you'll be unlikely to need it (we have proven very low return rates), this means there is absolutely no risk in giving Cartridge Save own-brand cartridges a try!
    Why our own-brand cartridges are so reliable
    Every single own-brand cartridge we sell is performance tested before it leaves the factory. In addition to this, we have a dedicated in-house quality assurance team who constantly monitor customer feedback, and quickly resolve any issues as soon as they are identified.
    We are also the biggest third-party cartridge retailer in the UK. Our large volume production combined with our dedication to quality has resulted in an exceptionally high quality range of products, which we're truly proud of. They produce vibrant prints with accurate colour densities and dark blacks, and have page yields which at least match the genuines.
  • Printer protection guarantee
    Our cartridges won't damage your printer—guaranteed
    Some people worry that own-brand cartridges might damage their printers. We know from experience that ours don’t.
    To reassure you, we guarantee that we’ll repair or replace your printer—for free—in the unlikely event that it gets damaged by an own-brand cartridge. This is regardless of how old your printer is. We can afford to offer this because problems are almost unheard of.
    Some people whose printers are less than a year old worry that an own-brand cartridge might invalidate the manufacturer’s warranty. This isn’t true. By law, the manufacturers aren’t allowed to invalidate your warranty if you use own-brand cartridges. If something does go wrong, and our own-brand cartridges are to blame, we’ll take over the manufacturer’s warranty, offer you phone support and repair or replace your printer if needed.

    In summary, there’s zero risk in using our own-brand cartridges.
  • 3 year warranty and FREE returns

    3 year warranty and FREE returns

    If within 3 years of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

    Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

  • Will this item work in my printer?
2.8p per page

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

  1. 475 pages
12ml
High Capacity

Looking for originals?

Genuine HP available for £16.25 more

Genuine HP
Genuine High Capacity Black HP 21XL Ink Cartridge - (C9351CE)
Genuine High Capacity Black HP 21XL Ink Cartridge - (C9351CE)
97.209302325581% of 100
129 reviews
Customer Reviews
  1. 5 Star 112
  2. 4 Star 16
  3. 3 Star 1
  4. 2 Star 0
  5. 1 Star 0
See all 129 reviews

Average Customer Review:
97.209302325581%
129 reviews

  1. 100%

    By Bernard. on

    Installation OK
    Price Fair - I trust Cartridge Save Price to be one of the best.
    Print Quality Good.
    HP Deskjet F2280 Printer Used with HP brand ink only as cannot risk printing difficulties. ( Not a heavy user)
    I would not hesitate to recommend to others.
    Delivery by post next day (Saturday) without paying extra. Most gratifying.
  2. 100%

    By Dave the printer on

    Cannot fault the service, it arrived next day as promised.The OEM product should be as required.
  3. 100%

    By Annette Christie on

    Great service as always. Ordered late Friday afternoon, expected date of delivery advised the following Monday but order arrived in post before 10:00 am on Saturday. Price very competitive and perfect fit for our Epson printer. Great print quality. Thank you CartridgeSave!
  4. 100%

    By Elizabeth Hine on

    Great cartridges, easy to install, excellent service, next day free delivery. What could be better than that?
  5. 100%

    By John Simmons on

    Excellent service. Easy to use and prompt delivery.
<< < 1 2
...
25 26 > >>
1 pack | 6.2p per page Pack of 1 cartridges
Page yield:
  1. 475 pages
12ml

Pack Contains:

Black - 475 pages
12ml

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

High Capacity
  • High capacity black ink cartridge
  • 12-month warranty

    If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

  • Lowest online price guarantee
  • Lowest online price guarantee

    12 month guarantee and FREE returns

    If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

    Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

  • 12 month guarantee and FREE returns

    12 month guarantee and FREE returns

    If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

    Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

6.2p per page

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

  1. 475 pages
12ml
High Capacity
Genuine High Capacity Black HP 21XL Ink Cartridge - (C9351CE)
1 pack | 6.2p per page Pack of 1 cartridges
Page yield:
  1. 475 pages
12ml

Pack Contains:

Black - 475 pages
12ml

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

High Capacity
£29.54 (£35.45 inc VAT)

FREE next-day delivery

Multi-buy discount
  • Buy more, save money
  • 2 £27.71 (£33.25 inc VAT)
  • 3+ £27.08 (£32.50 inc VAT)
1 pack | 6.2p per page Pack of 1 cartridges
Page yield:
  1. 475 pages
12ml

Pack Contains:

Black - 475 pages
12ml

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

High Capacity
    • High capacity black ink cartridge
    • 12-month warranty

      If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

    • Lowest online price guarantee
    • Lowest online price guarantee

      12 month guarantee and FREE returns

      If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

      Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

    • 12 month guarantee and FREE returns

      12 month guarantee and FREE returns

      If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

      Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

£29.54 (£35.45 inc VAT)

FREE next-day delivery

Multi-buy discount
  • Buy more, save money
  • 2 £27.71 (£33.25 inc VAT)
  • 3+ £27.08 (£32.50 inc VAT)
Won't invalidate your printer warranty

Won't invalidate your printer
warranty

We guarantee that your standard printer warranty will not be invalidated by using our premium brand cartridges. If any of our cartridges do cause a problem with your printer, we'll arrange for your printer to be repaired (or replaced if it can't be repaired).

Cartridge Save brand 12 month guarantee

Cartridge Save premium
recycled toner cartridges

Made using recycled Canon cartridges, these cartridges are a direct replacement for the Canon versions, and are guaranteed to produce high-quality prints.

12 month guaranteed

If within a year of purchase you happen to experience any quality problem with anything you buy from Cartridge Save, we'll happily provide a replacement or full refund.

Free returns

Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

Product Description

Product Description

Compatible High Capacity Black HP 21XL Ink Cartridge - (Replaces HP C9351CE)

The compatible HP 21XL black ink cartridge is a high capacity unit that is suitable for use in a large number of HP printers. This highly versatile cartridge offers great value for the money and is available to purchase at a substantial discount compared to the original alternative. Using the compatible high capacity HP21XL black ink cartridge gives you exceptional print quality combined with reliability, providing you with print after print of an extremely high standard. With the compatible black HP 21XL cartridge, you will be able to print out stunningly clear pictures and beautifully detailed documents whenever you need them on many of the popular printers, a compatibility list can be found above. This high capacity compatible HP C9351CE cartridge is ideal for home use, giving you a cost-effective way of maintaining your printer.

Low prices on the compatible HP C9351CE high capacity black ink cartridge

When you want to find a compatible HP 21XL black ink cartridge at the best price, you only need to look at Cartridge Save, where you'll be guaranteed to find the lowest prices on printer cartridges anywhere on the internet. At Cartridge Save, we provide a range of payment options, including all major credit cards, PayPal and credit accounts for schools, charities and government organisations. We can deliver it direct to you the next day for free, or you can upgrade to a morning delivery if your cartridge order is urgent. You'll find all the information you need about the compatible HP C9351CE black ink detailed in the product specifications, but if you have any queries, our customer service team are available to help.

Product Specification

Product Specification

More Information
Manufacturer Part No.:C9351CE, HP 21XL, HP21XL, 21XL
Group:Black ink cartridges
Brand:Cartridge Save Compatible HP
Colour:Black
Product Type:Ink Cartridge
Capacity:12ml

Other cartridges and multipacks in this range

Compatible Photo Colour HP 58 Printer Cartridge - (HP C6658AN)
Compatible Photo Colour HP 58 Printer Cartridge
£10.92 (£13.10 inc VAT)
Compatible High Capacity Tri-Colour HP 22XL Ink Cartridge - (Replaces HP C9352CE)
Compatible High Capacity TriColour HP 22XL Ink Cartridge
£14.04 (£16.85 inc VAT)
Compatible Multipack High Capacity Black HP 56 Printer Cartridge Twin Pack - (HP C9502AE)
Compatible Multipack High Capacity Black HP 56 Printer Cartridge Twin Pack
£11.51 (£13.81 inc VAT)
Compatible High Capacity Black & Tri-Colour HP 21XL / HP 22XL Ink Multipack (HP C9351CE & HP C9352CE)
Compatible High Capacity Black & TriColour HP 21XL / HP 22XL Ink Multipack
£25.87 (£31.04 inc VAT)
Compatible High Capacity Tri-Colour HP 57 Printer Cartridge - (HP C6657AN)
Compatible High Capacity TriColour HP 57 Printer Cartridge
£19.03 (£22.84 inc VAT)
Compatible Black HP 27 Printer Cartridge - (HP C8727AN)
Compatible Black HP 27 Printer Cartridge
£10.57 (£12.68 inc VAT)

Product Information

Product Description

Compatible High Capacity Black HP 21XL Ink Cartridge - (Replaces HP C9351CE)

The compatible HP 21XL black ink cartridge is a high capacity unit that is suitable for use in a large number of HP printers. This highly versatile cartridge offers great value for the money and is available to purchase at a substantial discount compared to the original alternative. Using the compatible high capacity HP21XL black ink cartridge gives you exceptional print quality combined with reliability, providing you with print after print of an extremely high standard. With the compatible black HP 21XL cartridge, you will be able to print out stunningly clear pictures and beautifully detailed documents whenever you need them on many of the popular printers, a compatibility list can be found above. This high capacity compatible HP C9351CE cartridge is ideal for home use, giving you a cost-effective way of maintaining your printer.

Low prices on the compatible HP C9351CE high capacity black ink cartridge

When you want to find a compatible HP 21XL black ink cartridge at the best price, you only need to look at Cartridge Save, where you'll be guaranteed to find the lowest prices on printer cartridges anywhere on the internet. At Cartridge Save, we provide a range of payment options, including all major credit cards, PayPal and credit accounts for schools, charities and government organisations. We can deliver it direct to you the next day for free, or you can upgrade to a morning delivery if your cartridge order is urgent. You'll find all the information you need about the compatible HP C9351CE black ink detailed in the product specifications, but if you have any queries, our customer service team are available to help.

Product Specification

More Information
Manufacturer Part No.:C9351CE, HP 21XL, HP21XL, 21XL
Group:Black ink cartridges
Brand:Cartridge Save Compatible HP
Colour:Black
Product Type:Ink Cartridge
Capacity:12ml

Customer Questions & Answers

Customer Questions & Answers

Can't find the answer you're looking for? Ask us a question we're happy to help!

We are currently answering questions in: 8 minutes

Questions asked between 9am and 5pm, Monday to Friday excluding bank holidays will be answered within 30 minutes.
No questions have been submitted yet!

Customer Reviews

Customer Reviews and Ratings

  1. 5 Star 8
  2. 4 Star 2
  3. 3 Star 0
  4. 2 Star 0
  5. 1 Star 0
See all 10 reviews

Average Customer Review:
96%
10 reviews

Customer Reviews
  1. 100%

    By David on

    I use these regularly, they never cause any problems and they last a long time. My last cartridge was a genuine HP which I had to buy in an emergency, it cost twice the price and lasted half as long as the Cartridgesave alternative. Delivery is always fast and reliable.
  2. 100%

    By Don on

    Same excellent service and product I hve lways received fron Cartridgesave
  3. 80%

    By Vanessa on

    Very good
  4. 100%

    By Dav on

    Excellent prices and service. Very quick and easy ordering. Will keep using as first choice.
  5. 100%

    By Cornish Dowser on

    VERY Fast delivery, cheap,high quality. Buy it!
  6. 100%

    By Leonard Singer on

    Good quality and very good service
  7. 100%

    By Tony Huntley on

    Bought a similar cartridge before from Cartridgesave and was perfectly satisfied with both the service from the company and the performance of the item. A very good buy.
  8. 100%

    By DAVID WIGHT on

    EXCELLENT VALUE WORKS PERFECTLY
  9. 80%

    By Granville S on

    as good as HP originals for a better price.
    Excellent print quality on my Deskjet F2280 All-In-One
    Highly recommended!
  10. 100%

    By Margaret Katny on

    Excellent product. Good price. Speedy delivery.

Compatibility

This item is guaranteed to work in the following printers

Guaranteed to work in the following printers

To see a full list of products that work in your printer, click on the model name below:

Compatible High Capacity Black HP 21XL Ink Cartridge - (Replaces HP C9351CE)

The compatible HP 21XL black ink cartridge is a high capacity unit that is suitable for use in a large number of HP printers. This highly versatile cartridge offers great value for the money and is available to purchase at a substantial discount compared to the original alternative. Using the compatible high capacity HP21XL black ink cartridge gives you exceptional print quality combined with reliability, providing you with print after print of an extremely high standard. With the compatible black HP 21XL cartridge, you will be able to print out stunningly clear pictures and beautifully detailed documents whenever you need them on many of the popular printers, a compatibility list can be found above. This high capacity compatible HP C9351CE cartridge is ideal for home use, giving you a cost-effective way of maintaining your printer.

Low prices on the compatible HP C9351CE high capacity black ink cartridge

When you want to find a compatible HP 21XL black ink cartridge at the best price, you only need to look at Cartridge Save, where you'll be guaranteed to find the lowest prices on printer cartridges anywhere on the internet. At Cartridge Save, we provide a range of payment options, including all major credit cards, PayPal and credit accounts for schools, charities and government organisations. We can deliver it direct to you the next day for free, or you can upgrade to a morning delivery if your cartridge order is urgent. You'll find all the information you need about the compatible HP C9351CE black ink detailed in the product specifications, but if you have any queries, our customer service team are available to help.