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For maximum strength and thermal efficiency, we recommend the 350 Series. A full-depth layer of polystyrene cushions and insulates each panel, while steel backing adds an extra layer of support. Together, these provide an R-value of 9.83 for maximum thermal efficiency. From the solid construction and whisper-quiet operation to the distinctive look of this premium product, the 350 Series was designed to please and perform. The 351 and 359 Series are constructed and backed with heavy-gauge steel and carry a lifetime limited warranty.
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Panel Styles
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Classic Raised Panel
(351 Series)
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Traditional Long Panel
(359 Series)
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Construction & Standard Features

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