Introducing our {TIJ2.5 Bulk Ink Systems CISS Tank with 1/2/4/6 Femail Connectors for 51645A Ink Cartridge}, proudly manufactured in our factory. This innovative product offers a convenient solution for your printing needs. Our CISS (Continuous Ink Supply System) Tank effortlessly supplies ink to your 51645A Ink Cartridge, ensuring uninterrupted printing. With 1/2/4/6 female connectors, it supports multiple cartridges simultaneously. Say goodbye to frequent cartridge replacements and hello to cost savings. Trust our factory's superior quality and enhance your printing experience today.