About The Generac GP5500 5939 is part of the Generators test program at Consumer Reports. In our lab tests, Portable Generators models like the GP5500 5939 are rated on multiple criteria, such as ...
Generac has been making powerful claims about its 20-kilowatt stationary generator, perhaps too powerful. When the company said that its machine was more powerful, longer-lasting, quieter, safer to ...
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