And, still more info:

The phone number on the Circulator website, 561-208-6535, is
(561) 208-6535 is a Landline
Florida (Boca Raton)
South Florida/Gold Coast metro area, Palm Beach County
and is associated with
Legacy Worldwide, Inc
9235 Captiva Circle
Saint Pete Beach, FL 33706-1356 map
Wesley T Welden
President
The address is a Florida condo, here:
http://goo.gl/maps/Wmjqi

Also, the website lists an extensive C.V. for "Dan Jones" who
along with other highly-skilled engineers have worked diligently over several years to bring to you this most significant item for your swimming pool. The patented "One and Only" Circulator is a modern marvel that will give you up to 1500% more circulating power, saving you time and money for the healthy life of your pool.
http://www.thecirculator.com/about_us.php

This C.V. lists three technical articles which "Dan" is supposed to have written:
"Gas Flow Resistance Measurements Through Packed Beds at High Reynolds Number", Transactions for the ASME: Journal of Fluids Engineering, Presented at International Fluids Conference-Paper No. 83-FE-8, June 1983.
"Numerical Determination of Surface Temperatures for In-Depth Thermocouples" Presented at 19th International Thermal Physics Conference, Snowmass, Colorado, Paper No. AIAA-84-1763
"Composite Millimeter Wave Radome For Mach 4+", Presented at the 5th DOD Electromagnetic Windows Symposium, Boulder, Colorado, October 1993.
Now, the second two articles are unknown to Google. That doesn't prove that they are fabricated, but it's not a good sign. However, it's the first article that's the 'coffin nail'; it exists, and can be found on DTIC.ml, http://www.dtic.mil/dtic/tr/fulltext/u2/a091300.pdf . So what's the problem? Take a look at this image of the title page:



Notice anything? Here's a clue: no "Dan Jones".

There's more, and I've archived all the data I found, along with the copy of the entire website as of 2Aug2012. But I think this is enough.