Integrity from Marvin Insert Double Hung Window

Integrity from Marvin insert replacement double hung window. Rich pine interiors are complemented by Ultrex fiberglass exteriors. Photo by Integrity from Marvin Windows. This window’s frame-in-frame design is precision built to your unique window opening, allowing for a clean replacement without disturbing the existing interior or exterior trim of your home. Rich pine interiors are complemented by Ultrex® pultruded fiberglass exteriors and a wide array of options for superior performance and durability that blend seamlessly with your home design.