The Hasler PowerPost Printer offers a dynamic ink delivery system, ideal for offices that send out mail on a frequent basis. Each Genuine HP Red Non Fluorescent Pigment Ink Cartridge has a space saving design which easily installs, to reduce downtime normally spent on complicated replacement procedures. These OEM / Genuine HP C6128A Red Non Fluorescent Pigment Ink Cartridges for your Hasler Power Post mailing system, have the power and durability to tackle the most demanding mailing tasks. The Hasler Powerpost also contains Thermal ink pigments, which minimize smudging and blurring. We guarantee excellent print quality with our Genuine HP ink cartridges or we will refund your money within 90 days of purchase. And all of our HP products for your Hasler mailing system will last up to 2 years for definitive convenience and performance.