Clearly I don't know the correct term - but I know what I want.
In a previous saga I removed the taps from a cast-iron bath. The holes in the bath were square! This came as a bit of a shock but apparently is not unknown.
However, the taps - which I had previously bought :-( - don't quite cover the holes.
So - what I want is a round washer-shaped thingy (preferably chrome or black plastic) to fit between the tap and the bath. Do such things exist and where can I get them?
TIA
Another Dave