Which kind do you prefer?
http://www.drsfostersmith.com/produc...=200 4+113171
Or this:
http://www.marinedepot.com/md_viewIt...product=TA1111
The top unit attaches with a screw to the center screw grounding lug in a U.S. electrical outlet...Not sure how it could connect to one of yours,, and the bottom one has a plastic plug, that also has a wire that attaches to the center screw for crounding.
Both are good units, and only about $1.50 difference, just let me or any of us know.