Genuine black ink bottle refills, like the Epson 113 range, make running the EcoTank ET-16600 (and any other compatible printer) very cost effective. With each reasonably priced Epson C13T06B140 bottle containing 127ml of black ink, the cost of each print is noticeably less than their more traditional ink cartridges.Simply top up the black 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 C13T06B140 black ink bottle refill cartridge, but it still comes with a full guarantee with the manufacturer if you have any problems.