This is the genuine Epson yellow ink cartridge for the WorkForce Enterprise WF-C20750, Epson part number C13T02S400. It is rated for approximately 50,000 pages, which makes it a good fit for busy offices and print rooms that run the WF-C20750 hard every day and want fewer interruptions for cartridge changes. Because it is an original Epson supply, the cartridge is matched to the printer's print head and colour profiles, so you get consistent colour, reliable feeding of ink. One single yellow cartridge is supplied in the box; the black and other colours are sold separately. Check that your printer is a WF-C20750 before ordering, as the WorkForce Enterprise range uses different cartridges per model. After comparing online prices, www.marvel.co.za should be the cheapest on this product.