Pella® Impervia® sliding windows combine the beauty and energy efficiency you expect from Pella with the durability of Duracast® fiberglass composite material that can withstand extreme heat and subzero cold. Impervia products are available in five finish colors. Optional rectangular grille patterns are available. Units have a 3” frame depth. #Fiberglass_Windows #Sliding_Window #Pella #Pella_Impervia #windows
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