Harmony Color Inkjet Refill Kit For Hewlett Packard HP 78 (C6578A/D)/HP 41 (51641A/D)/HP 23 (C1823D/G)/HP 17 (C6625A/D), 20mlx3, model: HPH-9078C Color Inkjet Refill Kit For Hewlett Packard HP 78 (C6578A/D)/HP 41 (51641A/D)/HP 23 (C1823D/G)/HP 17 (C6625A/D) 20ml x 3 Equivalent to 2-3 Refills