Genuine yellow ink bottle refills, like the Epson 113 range, make running the EcoTank ET-5850 (and any other compatible printer) very cost effective. With each reasonably priced Epson C13T06B440 bottle containing 70ml of yellow ink, the cost of each print is noticeably less than their more traditional ink cartridges.Simply top up the yellow ink reservoir ink your Epson EcoTank with this handy 113 bottle and you are good to go. We are sure you will be delighted with the original Epson C13T06B440 yellow ink bottle refill cartridge, but it still comes with a full guarantee with the manufacturer if you have any problems.