FREE next-day delivery on everything
Order now to receive on Monday

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

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 everything

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

Whatever the reason for returning items 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

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)

98.461538461538%
39 reviews

Average Customer Review:

  1. 5 Star 36
  2. 4 Star 3
  3. 3 Star 0
  4. 2 Star 0
  5. 1 Star 0
See all 39 reviews
| Ask a question
Compatible High Capacity Black HP 21XL Ink Cartridge - (Replaces HP C9351CE)
1.9p per page (1 pack) 1.9p per page Pack of 1 toner cartridges

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.

475 pages
20ml

Pack Contains:

Black - 475 pages
20ml

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
£8.92 (£10.70 inc VAT)

FREE next-day delivery

Multi-buy discount
  • Buy more, save money
  • 2 £7.46 (£8.95 inc VAT)
  • 3+ £6.85 (£8.22 inc VAT)
1.9p per page (1 pack) 1.9p per page Pack of 1 toner cartridges

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.

475 pages
20ml

Pack Contains:

Black - 475 pages
20ml

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
  • 98.461538461538%
    39 reviews

    Average Customer Review:

    1. 5 Star 36
    2. 4 Star 3
    3. 3 Star 0
    4. 2 Star 0
    5. 1 Star 0
    See all 39 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

    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
  • 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

    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.

  • 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).

  • 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).

  • Will this item work in my printer?
1.9p 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.

475 pages
20ml
  • 475 pages
  • 20ml
High Capacity
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 Cartrige 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. We guarantee to match or beat other online retailers, so you don’t need to waste time seeing if it’s cheaper elsewhere. 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
Capacity:20ml
Brand:Cartridge Save Compatible HP
Colour:Black
Product Type:Ink Cartridge

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. We guarantee to match or beat other online retailers, so you don’t need to waste time seeing if it’s cheaper elsewhere. 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
Capacity:20ml
Brand:Cartridge Save Compatible HP
Colour:Black
Product Type:Ink Cartridge

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 36
  2. 4 Star 3
  3. 3 Star 0
  4. 2 Star 0
  5. 1 Star 0
See all 39 reviews

Average Customer Review:
98.461538461538%
39 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.
  11. 100%

    By Tony Huntley on

    Only ordered one cartridge as I had had problems with other suppliers of similar refills. Very happy to report that this product from Cartridge Save works perfectly so will almost certainly buy further ones when I need them. Service and delivery were similarly faultless.
  12. 100%

    By Mike on

    Cannot comment on performance of cartridge as I have not yet used it but I can certainly give high praise for the friendly, knowledgeable service and speed of delivery.
  13. 80%

    By Maggie on

    Haven't used the black cartridge yet - waiting to exhaust the one currently in the printer. A colour one bought from you recently was good and fine, good quality, no smeary ink as on some cheap cartridges. Price seemed not the very cheapest but very good value for money as the quality seems good (and cheap blotchy leaky cartridges are a false economy and stall the printer). Website is excellent, easy to find what you want, and delivery very fast and efficient. This was my first order after ten years of using another (very good) supplier which is no longer trading and I expect to come to you again
  14. 100%

    By Ian Brown on

    I highly recommend cartridgesave because everything is as stated, including cartridge fitting, ink quality and free postage.
  15. 100%

    By Sue Brinkman on

    As usual quick next day delivery
  16. 100%

    By Leonard Singer on

    Very efficient service with speedy delivery and good prices
  17. 100%

    By Bernadette on

    Really pleased with HP21XL cartridges. Was as easy to install as the original HP cartridge and quality of print the same. Next day delivery was a bonus. Have yet to to see how long it lasts but all seems well at the moment.
    Would recommend Cartridge Save for replacement cartridges.
  18. 100%

    By Sandra Wall on

    Excellent price; arrived the next day as promised. I use a HPDeskjet F4100. IO would strongly recommend Cartiridgesave. It takes all the worry out of printing
  19. 100%

    By David Parkin on

    Very good value. Quick delivery.
  20. 100%

    By Jan on

    Always quick to deliver. Great value too!
  21. 100%

    By Jacqui Mortimer on

    Doesn't leak, good price, easy installation, HP printer. Good clear printing.
  22. 100%

    By michael horsley on

    I can only say how pleased I am with these HP 21XL items, price and delivery excellent. Above all they worked straightaway on my HP F2280 when other HP 21s caused me to think my printer was scrap.Now I've got super print quality and I would recommend them to everybody.Thank you.
  23. 100%

    By Sandra on

    I use an HP Deskjet F4180. These cartridges came the next day , were a very reasonable price and easy to install. I will get them again
  24. 100%

    By Mark johnson on

    Easy to install, and no problem at all
  25. 100%

    By John on

    Arrived quickly. Now put into stock.
  26. 100%

    By Cornish Dowser on

    High quality, excellent price, fast delivery, what`s not to like ?!
  27. 100%

    By Janice Cross on

    Always quick with delivery, and prices are the cheapest yet!
  28. 100%

    By Barbara Davidov on

    Very good price, print quality good, using it with an HP Printer and would definitely recommend you to others.
  29. 100%

    By Dan on

    Keep in a drawer as a spare for over a year but still worked first time straight out of the box. Great value, never a hassle with Cartridgesave.
  30. 100%

    By Esther Williams on

    Very good product
    Very quickly in deliver orders
  31. 100%

    By Lynn B on

    Good quality product, fast delivery as always
  32. 100%

    By Lesley Hanson on

    Good value for money
  33. 100%

    By Lesley Hanson on

    Good value for money
  34. 100%

    By Mrs Marjorie Fishwick on

    The service was excellent. The first cartridge I received was faulty but there
    was no problem - I received a replacement next day. Many thanks.
  35. 100%

    By John Donaldson on

    Arrived on tome and works well as usual
  36. 100%

    By Maggie Williams on

    Five star service, products and web site!
    Many thanks.
  37. 100%

    By Janet Martin on

    Very pleased with the ink Cartridges, beautiful clear pictures
  38. 100%

    By Arwyn on

    Good service fast delivery pleased with product would buy again
  39. 100%

    By ursula on

    very good service

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: