Page Yield*: 450 For best results, store in a cool, dry place. Use within 18 months of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) This remanufactured cartridge comes equipped with an original Epson chip that has been reset to provide you with accurate ink monitoring levels Compatible with the following Epson Stylus printers: C68, C88, C88Plus, CX3800, CX3810, CX4200, CX4800, CX5800f, and CX7801 Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.