Epson?s EcoTank replacement ink bottles deliver thousands of pages plus genuine Epson quality. Save up to 80 percent with low-cost replacement ink bottles vs. ink cartridges. Plus exclusive uniquely keyed EcoFit bottles make it easy to fill each color tank. Epson strongly recommends the use of genuine ink to ensure optimal print quality and performance. Use of non-genuine ink could cause damage not covered under the printer?s limited warranty