Jettec's H15 Black Ink Cartridge is a remanufactured HP 15 (C6615DE)

Jet Tec supply both compatible inkjet cartridges and remanufactured inkjet cartridges as well as refill kits for a wide variety of inkjet printers. Their cartridges have won many awards including the Queen's Award for Enterprise:Innovation 2004 for their patented Extralife technology which is exclusive to Jet Tec.

HP Color / Digital Copier
310.
HP Deskjet
810c, 812c, 816c, 825c, 827, 840c, 841c, 842c, 843c, 845c,
916c, 920c, 940c,
3810, 3816, 3820, 3822.
HP Fax
1230.
HP Officejet
v30, v40, v45, 5110.
HP Printer/Scanner/Copier (PSC)
500, 750, 950 series.