Aqueous Pigment Blank ink. Compares to Collins Ink MAX 3 HPQ2392. This comes with a 370ml Bulk Bladder, 42ml Print Head Cartridge and Connector Hose. The cartridge is a remanufactured product of the USA. Used in most envelope/address printers from Pitney Bowes, Neopost, Rena, Secap, Astro, Asmarc, FP Mailing Solutions, Buskro, Kirk-Rudy and MCS.