https://suppliesformailers.com/neopost-IJINK3456H-4105243U-remanufactured-1.aspx
IJ35/ IJ40/ IJ45/ IJ50/ IJ60 Compatible Red Fluorescent Ink Cartridge [MRN5243]
Neopost Compatible Inkjet Cartridge 4105243U Compares to: Neopost IJINK3456H. Postage Meter Inks are Compatible with the following Mailing Machines: Neopost...
red fluorescentink cartridge