panamax , monster or richard gray

seeking surge protection,a/c line condition level 6..
any suggestions regarding a brand.. thks in advance.
What is "level 6"?

I'd suggest a Powervar or OneAC unit instead of those you list. Less expensive, equally good...if not better.
i have tried all you are interested in and the 'powerwing' that alan kafton so much better then any that i have tried.give him a mail ...he may allow a demo before you yourself a favor and try it..