The original Epson 114 grey ink bottle contains the same 70ml of top-quality ink as the other colours in the range. When you purchase the genuine Epson C13T07B540, you get the very best results, but also keep the running costs of your EcoTank inkjet printer very low.We love this style of inkjet printer and fully endorse Epsons eco-friendly business model for the 114 ink refill bottle series. You can use the Epson C13T07B540 grey ink refill with the ET-8500, ET-8550 and any other compatible printer we have listed on this page.