We are probably not classifed as ink shop because we actually don’t stock all of the ink models, and we only stock those cartridges that are “colours separated” type and non printhead embedded. And we try to include all possible models from this range.
Now we have included more HP ink cartridges.
HP 18 and HP 88 are very similar, but in fact they are not entirely compatible to each other, so you will have to see the suitable printers and make sure you got the right one.