Power Nozzles 5, 5C, 6A, 6B, 6BC, 7B, 7BC
"Your power nozzle appears to be a Model 7B … "
To clarify, here's some information about the Omni-Flow power nozzles:
The black Omni-Flow Automatic power nozzles were PN-5 (to complement the Silverado's dark gray color). There was also a "sand" colored PN-5 which went with the first Diamond Js. The 5C went with the CB2000s--probably in both dark gray and sand. I'm not sure if there were any internal differences between the household and commercial versions--maybe the brush rolls were different.
Next, came the "jade"-colored PN-6, a dark green so dark that, at first glance, can appear to be black. It was the first model to feature an on/off/reset switch. In addition, it had a small brush strip that was secured behind the brush roll compartment for bare floor cleaning.
The PN-6A had no bare floor brush strip, the cord was hard-wired, and the rungs of the brush roll compartment were metal instead of plastic; it was initially used just for the plastic tanks, but was later used also for all the taupe-colored tanks (including the metal ones) when the PN-6 was discontinued. 6B replaced PN-6A and marked the change back to the plastic rungs; it was used for the plastic economy tanks (1623s) at the time. 7B was manufactured at the same time as the 6B but for the higher-end models (2100s), because it was equipped with extra channels on the bottom for increased air flow. The commercial versions were 6B (sand-colored w/Electrolux label) and gray-blue-colored w/the Prolux label) and 7BC (gray-blue w/the Electrolux label); I don't know if there was ever a 6C or 6AC. I'm not sure, either, if there was ever a 7 or 7A. Just when you think you've gotten all the information, something else pops up on eBay or Craigslist!
Anyway, some of the 6Bs and 7Bs had matching hoods--Electrolux typically didn't have uniquely -styled or -labeled hoods for its different categories of tanks even though the other parts may have differed. That's why it's good to know the model and do a little research before purchasing if you can. Check out the photos to see for yourself.
eBay Photos: 1-6B (bottom); 2-7B (bottom) 3-6B (top) 4-7B (top) 5 & 6-name stamps
