I have a leaky 2 handle bathroom faucet with the following cartridge below.
What brand is that cartridge/faucet (1st question), and is that so antiquated and old that I should replace the entire faucet (2nd question)? (It does not look like a design I've worked with previously.)
2nd question is more to, "oh no that's a terrible design and you shouldn't bother fixing that type of faucet," etc.. No need to effort replacing if this is not advisable.