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FREE next-day delivery on everything
 

Delivery Schedule

Most orders will arrive in the timeframes shown below. However, due to the COVID-19 crisis, a minority will take a day or more than expected. If your order hasn't arrived by the estimated delivery date, please allow 5 days before contacting us.


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

All orders are being dispatched from our warehouse on the day they are placed (Monday to Friday before 5:15pm).

The possible delays in delivery are due to unprecedented demand on couriers, and affect all couriers throughout the U.K. This means that all online stores will be affected equally, regardless of the speed in which orders are dispatched.

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
Fast, FREE 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.

<2>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)

94.4%
50 reviews

Average Customer Review:

  1. 5 Star 43
  2. 4 Star 4
  3. 3 Star 1
  4. 2 Star 0
  5. 1 Star 2
See all 50 reviews
| Ask a question
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4.4p 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
£20.82

FREE next-day delivery

Multi-buy discount
  • Buy more, save money
  • 2 £18.17
  • 3+ £17.04
4.4p 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
  • 94.4%
    50 reviews

    Average Customer Review:

    1. 5 Star 43
    2. 4 Star 4
    3. 3 Star 1
    4. 2 Star 0
    5. 1 Star 2
    See all 50 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 our own-brand cartridges
    We are proud of our own-brand cartridges, so we’ve made trying them a no-brainer. If within three years of purchase you have any problem whatsoever, we’ll happily offer either a replacement or a refund.
    Returning items is easy—it takes just a few minutes. But our return rate is very low, so you’ll be unlikely to need it.
    We are confident that no other own-brand cartridges are better than ours. They produce vibrant prints with accurate colour densities and dark blacks—and their page yields are as good as the genuines, if not better. Give them a try, and see why our customers love them.
    Our own-brand cartridges are incredibly reliable for three reasons:
    1. We are the UK’s biggest seller of own-brand cartridges, and we have invested a lot in optimising them.
    2. We are dedicated to quality. Every own-brand cartridge is performance-tested before it leaves the factory.
    3. We constantly monitor customer feedback, and quickly resolve any issues.
  • 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?
4.4p 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 £17.26 more

Genuine HP
Genuine High Capacity Black HP 21XL Ink Cartridge - (C9351CE)
Genuine High Capacity Black HP 21XL Ink Cartridge - (C9351CE)
96.788321167883% of 100
137 reviews
Customer Reviews
  1. 5 Star 116
  2. 4 Star 20
  3. 3 Star 1
  4. 2 Star 0
  5. 1 Star 0
See all 137 reviews

Average Customer Review:
96.788321167883%
137 reviews

  1. 100%

    By accountability on

    I'm delighted with these HP 21XL cartridge. They are ready for use when required on 10 year old backup printer. installation is simple. The price was really good, great value. Delivery was advertised as next-day and arrived on time. I always use Cartridge Save for my cartridges and I would recommend these cartridges to anyone with this printer.
  2. 100%

    By John Stevenson on

    What is most important about on line purchases is the quality of service and the quality of product, price not so much as long as it is reasonable. Cartridgesave have got quality of service and a quality product in spades. I won’t be going anywhere else anytime soon.
  3. 100%

    By John Stevenson on

    What is most important about on line purchases is the quality of service and the quality of product, price not so much as long as it is reasonable. Cartridgesave have got quality of service and a quality product in spades. I won’t be going anywhere else anytime soon.
  4. 100%

    By John Stevenson on

    What is most important about on line purchases is the quality of service and the quality of product, price not so much as long as it is reasonable. Cartridgesave have got quality of service and a quality product in spades. I won’t be going anywhere else anytime soon.
  5. 80%

    By Elizabeth Hine on

    Good service fast delivery, but what is wrong with my letter box ? WHY do I have to stay home to sign for delivery? And, despite asking, no price is shown on the invoice making claiming expenses very difficult.
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Show per page
1 pack | 8.0p 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.

8.0p 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 | 8.0p 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
£38.08

FREE next-day delivery

Multi-buy discount
  • Buy more, save money
  • 2 £36.10
  • 3+ £35.30
1 pack | 8.0p 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.

£38.08

FREE next-day delivery

Multi-buy discount
  • Buy more, save money
  • 2 £36.10
  • 3+ £35.30
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

Looking for original cartridges?

Genuine HP available for £38.08
Genuine High Capacity Black HP 21XL Ink Cartridge - (C9351CE)

Other cartridges and multipacks in this range

Compatible Photo Colour HP 58 Printer Cartridge - (HP C6658AN)
Compatible Photo Colour HP 58 Printer Cartridge
£15.84
Compatible High Capacity Tri-Colour HP 22XL Ink Cartridge - (Replaces HP C9352CE)
Compatible High Capacity TriColour HP 22XL Ink Cartridge
£24.17
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
£42.84
Compatible High Capacity Tri-Colour HP 57 Printer Cartridge - (HP C6657AN)
Compatible High Capacity TriColour HP 57 Printer Cartridge
£29.95
Compatible Black HP 27 Printer Cartridge - (HP C8727AN)
Compatible Black HP 27 Printer Cartridge
£17.93

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 43
  2. 4 Star 4
  3. 3 Star 1
  4. 2 Star 0
  5. 1 Star 2
See all 50 reviews

Average Customer Review:
94.4%
50 reviews

Customer Reviews
  1. 60%

    By Stephen Voysey on

    Price was good... prints ok with HP Deskjet F2180... Installation was difficult and took the best part of an hour following directions. Eventually worked after cleaning contacts with wet wipes. Was on the verge of returning the cartridge. Working ok now. Delivery understandably took a couple of days under current Covid circumstances.
  2. 100%

    By J Harland on

    Suoer delivery service - from ordering to delivery only 19 hours.
    Can't assess quality of product as it may be sometime before it is needed in my printer.
  3. 100%

    By JohnG on

    Brilliant service, quick delivery, highly recommended. Very competitive price.
  4. 100%

    By Alex on

    Exactly what was required meeting all the specifications to work in my HP printer
  5. 20%

    By James Crossming on

    The cartridge was easily fitted to my HP Inkjet 2008 and is now
    performing well.
  6. 80%

    By Gary twitchett on

    Good price good quality, would recommend to others
  7. 100%

    By jane on

    very timely delivery with no fuss ...
  8. 100%

    By David on

    Arrived in good time despite it being ordered during the heart of the covid crisis. As always an excellent cartridge. Never any problems with this reliable company, I never use anyone else.
  9. 20%

    By Kathryn B on

    Not compatible with my HP Deskjet F2180.
  10. 100%

    By Bryan on

    Having used Cartridgesave for years, I opted for their own make compatible cartridge having used genuine HP cartridges prrviously. It wss deliverrd within 18 hours in line with my experience of their very prompt deliveries.
    The information on the cartridge box did not however Include in the list the cartridge as being compatible with my own printer. On phoning prior to unpacking it I was assured that it was compatible. A very prompt and professional response in line with the previous experienced I’ve had with Cartridgesave.
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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.