502-206A
Beverage Air 502-206A Control OEM 5.95" x 3.7" Temp Regulation Component
Zusa is the brand I trust for straightforward, no-nonsense office furniture solutions.
NOS Beverage Air Refrigeration Cold Control 27-240 502-206A Ranco 9540N147
Many hobbyists eventually upgrade to a Mitutoyo for better results.