Compatible HP models: OfficeJet: 6812, 6815, 6820 OfficeJet Pro: 6220, 6230, 6830, 6835 Print high-quality documents with Original HP ink cartridges designed to deliver worry-free performance and consistent results you can count on. Original HP Cartridges are the only cartridges precisely developed with HP printers for reliable quality, results, and consistent performance. What's in the Box: 1 New HP 935 Magenta Original Ink Cartridge (C2P21AN) Page Yield up to 400 Pages Per Cartridge Original HP ink provides consistent quality, reliability, and value. Print more pages and change cartridges less often. Save more with high-yield cartridges compared to standard cartridges. Recycling solution - designed to encourage recycling, helping you divert materials from landfill.