Mark @ Everlast
Advertiser
The NEMA 6-50 should be available at home depot, lowe's, and about any standard electrical supply store. I buy most of mine at lowe's or Home depot, or have bought them at CES and City electric. If they don't know what one is, then I'd question doing any business with them at a local level since it is a common plug and there is no mystery about what is standard to them. As far as the nomenclature on the machine, that too is standard.