Greg is correct on this one, but not with regards to the vacuums. Like many companies with a trademarked brand name, Tacony Corporation licences the rights to use the name "Fuller Brush" from it's parent company, & agrees to certain terms & conditions under which the name can be used.
Mike - Yes, very true, the Fuller Brush products aren't the same quality the Riccar & Simplicity products are. But, they sell for 1/3 the price, too. If I remember correctly, the Simplicity Verve canister, before it was discontinued & removed from the website, had a MSRP of just over $1,000 US dollars, & most dealers in Canada sell it for around $900-$1,000 CDN dollars. In comparison, the Fuller Brush Home Maid powerteam canister is selling at our local vac shop for $326 CDN dollars. "You get what you pay for". The Carpet Pro / Fuller brush lines aren't catering to high end customers, they are catering to people who are looking for performance & quality, yet want value for their dollar. The online sites & shops that sell those lines are essentially selling to the same customers that would otherwise be shopping in Walmart for their next vacuum.
Rob