LD Remanufactured Inkjet Cartridge Replacement for Neopost 4145144H (Fluorescent Red) Page Yield: 2,000 | Shelf Life: 36 months The use of remanufactured cartridges and supplies does not void your printers warranty Our remanufactured postal meter red ink cartridges all exceed USPS requirements for fluorescence All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee For use in the following NeoPost: IS-280