I'm not going to recommend a specific manufacturer's cord. I know what brand I use, and we all have our reasons.
However, there is one criteria I strongly suggest you follow and that is wire gauge. Your dedicated circuit uses (I hope) 10AWG conductors or larger. So any cord connecting your conditioner to the wall should be at least that size.
However, there is one criteria I strongly suggest you follow and that is wire gauge. Your dedicated circuit uses (I hope) 10AWG conductors or larger. So any cord connecting your conditioner to the wall should be at least that size.