I have these shower knobs in an older shower stall. I want to replace the knobs only (the valves seem to be working fine). I picked off the cover for the screw on one and found that there was a cross-shaped part underneath. However, I could not find any holes or crews that would let me take it off any further...
I'm looking for swap-in knobs that would mate properly with this cross-shaped base. Anyone know what this is called, or how I would find a set?
Thanks!