We do not carry the Air Still power cable as a spare part, however, there are many on the market suitable as replacements:
Key features of the power cable: NEMA5-15P power plug, IEC C13 connector, 16AWG cable.
Alternatively, the Grainfather Connect Control Box power cable or a Grainfather Glycol Chiller power cable will all work with the Air Still, if you already have one.