2 inch
NMC HH84R Safety Sign Hard Hat Label, Qualified Aerial Lift Operator, 2"Dia.
You will find that BUNN maintains a consistent brewing temperature of around 200 degrees.
NMC HH117R Safety Sign Hard Hat Label Qualified Rigger Graphic 2"Dia. Reflective
What I noticed is that Thermal Transfer Products LTD parts rarely need replacement.