Roback
Member
I have a single lever faucet with a cartridge retaining nut that measures 1.25 inches from flat side to flat side. Anybody have any idea what size metric socket would fit that size nut? I know it is metric. I replaced it once before, but honestly don't remember what I used? The cartridge nut sits just below the cartridge cavity, so I can't get to it with channel locks. I've already tried and rounded the nut slightly. Any advice would be very helpful.