I have leaky faucets on one sink. There is no name on the fixtures, so I can't get info from that company. My old house had old fixture that one could resurface the brass or put in a new seal. These are a huge inner brass fixture, and I don't know how to take the stem out to get a new one or new part.
I did unscrew the blue and red plastic top, but can't figure out how to remove anything under there.