50 amp surge protectors

I have installed both, as I mentioned in my original post. I was trying not to be critical of PI, or throw my testimonial out there to be chewed up because everyone has a testimonial, usually one that supports their expenditure more than anything else.

But you asked, -

• Surge Guard has a larger, more complete line than Progressive Industries, including power conditioners and transfer switch/surge combination units - I see that as a bigger depth and maybe a bigger history than Progessive Industries.
• Surge Guard is used as factory equipment in many higher end MHs, whereas I see Progressive Industries only as aftermarket.
• The Surge Guard unit has a lot more room to work inside than the Progressive Industries
• The sensor rings are built in on the Surge Guard, on Progressive Industries you have to try to thread your conductors through them in that tight space
• My instructions for Progressive Industries were printed showing the rough in upside down causing me to have to remove and start over - when I mentioned it to customer service on another issue, she actually laughed and said "ya they know"
• Through several issues with the LCD readout card falling out on my Progressive Industries EMS-HW50C because the socket is upside down, the card actually shorted out. Customer service was unsympathetic and I actually had to buy a new LCD card. Ultimately I wire tied it in to make it stay in the sockety
• Southwire Customer Service has been excellent in my opinion both on the phone and with owners at the rallies

That is my basis for thinking Southwire is better - others may have varying results. My main point is beware there are others out there besides Progressive Industries :)