Upgrade your printing experience with our high-quality 522 Ink Refill Bottles, designed specifically for a range of Epson EcoTank printers. Compatible with models including ET-2800, ET-4800, ET-2400, ET-2803, ET-2720, ET-4700, ET-4810, and ET-2840, these refill bottles offer exceptional performance and reliability. Key Features: Superior Page Yield: Each 522 black ink bottle prints over 8,000 pages, while each color bottle also delivers impressive results, ensuring you get maximum value for your printing needs. Advanced Ink Formula: Our upgraded ink formula guarantees sharp, clear text and vibrant colors. Rigorously tested for optimal performance, it flows smoothly without clogging, fading, or compromising print quality. Leak-Free Filling: Designed with an automatic stop feature, our refill bottles prevent ink leakage during the filling process. Simply lift the bottle once filled to ensure a clean and hassle-free experience. Complete Package: This set includes 2 bottles of 522 black ink and 1 bottle each of 522 blue, magenta, and yellow ink, providing everything you need to keep your printer running smoothly. Reliable Customer Support: We pride ourselves on excellent customer service. If you have any questions or need assistance, our dedicated team is available 24/7 to help you.