Mostly I buy the refilled cartridges from 123 Inkjets online & always get the XL which has more ink in them than the regular I guess. They seem to last a long time. I had trouble one time with the color cartridge. My printer wouldn't recognize it but they replaced it & all was good. I tried several years ago to refill my own with a kit. I would never do that again. Waste of money. I am really satisfied with the refills though that I get from them. Also when my printer says the ink is low, I can still use it for a long time after.