<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div>An update to magnetic coupler efficiency, if a titanium barrier is used the power loss is 350w or 5%. The coupler manufacturer offers this barrier for 2,000 dollars. A stainless barrier has a power loss of 10% and costs 500 dollars. Total cost is 3,200 dollars for a magnetic coupler with a power loss of 5%.</div><div>The Nuyt screw of coarse uses a titanium barrier.</div><div>Hank</div></div></body></html>