The following cartridges (including all ink cartridges, printheads & maintenance products) are guaranteed to work in the HP Photosmart 8450gp printer.
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Are these cartridges regular HP cartridges or not, I always buy HP ones as I bought some remanufactured ones from someone else and had nothing but trouble!
We do sell original HP cartridges if you'd prefer to order those. You will find them towards the bottom of the page or if you'd like to buy the full colour set then copy and paste the following link into your web browser. https://www.tonergiant.co.uk/product/HP-No-339-No-344-Ink-Cartridge-Twin-Pack-339344P-78788/ This pack contains both the HP 339 Black and the HP 344 colour cartridges.