Remanufactured Ink Cartridge Replacement for 2 x HP 21 + HP 22 (1 Color 2 Blakc 3 Pack) Alternative to OEM, comes with ONE YEAR WARRANTY from the date of purchase against manufacturer defects. Page Yield: Black 190 Color 165 pages at 5% coverage on Letter/A4 paper. This replacement Inkjet cartridge is built to ISO9001 and ISO14001 Factory Standards. Compatible with Deskjet 3930 series Deskjet 3940 series PSC 1410 series