Will (KirbysNPhones),
BTW, Kirby did have other commercial vacuums available... none of them were ever as successful as their household line:
* Janitronic (18" wide nozzle)
* Comvac 1600 (16" wide nozzle; same motor lineage as Tradition/Heritage/Legend - but motor switch is on handle instead of by rear wheels).
A former Scott Fetzer subsidiary, American-Lincoln, also made 18" wide commercial vacuums (they are like the 516/Sanitronic series Kirbys):
* Super-Sweep (1st gen, army green trim) (1968-1974)
* Super-Sweep (2nd gen, emerald green/white trim) (1974-1976)
* Super-Sweep 180 (dark blue/white trim) (1976-1982)
* Super-Vac 180 (dark blue/white trim) (1982-1984)
~Ben