Epson 812 DURABrite Ultra Ink High Capacity Yellow Cartridge (T812XL420-S) Works with Workforce Pro WF-7310, WF-7820, WF-7840, Workforce EC-C7000

These are expensive and getting harder to find at a discount. OEM and as advertised. The last time I purchased I had to order through Epsom because everyone was out of stock.

Epson recently rolled out yet another system update that causes the printer to not recognize the aftermarket brands without a workaround, so if you want to avoid the hassle and risk of that, this is the one to go with. And keep a spare at hand. The shelf-life is outstanding.I like that Epson separates the blue, cyan, and magenta into three different cartridges. I just hit a weird situation with another printer where the yellow ran out but the other two were fine and I had to throw the whole things out as it's all one cartridge. This set-up is more convenient, ecologically sound, and economical.I like the XL for this, because it lasts much longer than the standard size. I like the quality of the print, the fact it's not prone to smearing, and can produce bright, rich colors.

Works just as it should, easy to install.

got them a day or two late, but got them

This ink produces beautiful vibrant color prints.

I like Epson ink. Good color saturation. Does not smear like other inks. The cartridges seem to last OK. Just wish they were not so expensive!

I never use knock off ink. Epson ink is always excellent.

Perfect fit for my Epson printer.