Preferred Postage Supplies Neopost # Isink2 (High Volume) Red Ink Cartridge for Neopost Is280 (Ink Meets USPS Requirements) Isink2 neopost ink cartridge is a compatible direct replacement for neopost IS280 postage meter Red ink cartridge, 1 per box / (300) postage labels free Total imprints up to 19,000 Don't settle for cheap imitations, this is a quality compatible