HP 501A / HP 503A Toner SET - Combo 4 Pack - Q6470A Q7581A Q7582A Q758
TCT Premium Compatible Toner Cartridge Replacement for HP 503A Q7581A Cyan works with HP Color LaserJet 3800N 3800DN 3800DTN, CP3505 Printers (6,000 Pages) - Walmart.com
HP 503A Magenta Standard Yield Toner Cartridge (Q7583A) | Staples
Remanufactured Magenta Toner, Replacement For Hp 503a (q7583a), 6,000 – Globe Chemical Company, Inc.