After Sales Service: Oranysty compatible 522 ink refill bottles undergo rigorous installation testing at the factory to ensure a high degree of compatibility with Ecotank printers. We are there whenever you need us. 24-hour technical support. Any defective ink can be returned or replaced. EASY INSTALLATION: The Oranysty 522 ink refill bottles are precision molded with multiple leak-proof designs. Extremely easy to install and rigorously tested for compatibility, print quality and page yield. The oranysty 522 dye ink is highly stable and much less likely to clog printheads. Each bottle of compatible 522 ink is 70ml and prints at least 6,000 pages (5% coverage on A4 paper). Packing List: 1 x Compatible epson 522 T522 Black Ink, 1 x Compatible epson 522 T522 Cyan Ink, 1 x Compatible epson 522 T522 Magenta Ink, 1 x Compatible epson 522 T522 Yellow Ink and 1 x User's Manual and Disposable Gloves, 4 packs. (not heat sublimation ink). T522 522 ink refill bottles Compatible for epson Ecotank ET-2720 ET-2800 ET-2803 ET-4700 ET-4800 ET-4810 ET-2400 ET-2840 ET2760 ET-4760 ET2750 ET-3760 ET-2850 ET-15000 ST-4000 ST-2000 ET-3710 ET-3850 ET-3750 ET-4850 ET-3830 ET4750 ET2700 ST3000 ET3700 ST-C2100 ST-C4100 Printer.