Best Automatic Transfer Switch

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Best 1 Generac Guardian 3300
Generac Guardian 3300
From $1200 - $1800 (varies based on retailer and promotions)

The Generac Guardian 3300 is a popular choice for whole-house backup power. It delivers 3300 starting watts and 2600 running watts, sufficient for essential appliances. The automatic transfer switch...

9.0 Excellent
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