powerworx RX E3

Hi All,

does anybody have any experience of Powerwork RX E3. It appears to do similar job as stetzer filters, but can be wired into the fusebox at source. Ican't see a price though?  

http://www.youtube.com/watch?v=JUR81YcgTxk

http://www.greenertechnologies.us/nema1.html

It would also be good to know if it can be used in UK too?

Regards

David