Marvin Infinity Window
The Marvin Infinity is the higher end Marvin fiberglass window that is widely regarded as one of the best fiberglass windows available. The Infinity offers more options, a better looking frame, more sizing options, and better hardware than the Integrity model. The Infinity comes with a fiberglass exterior and an interior option of either the Ultrex or a wood veneer called their EverWood that resembles the look of wood but does not require the maintenance that a real wood species does. The performance numbers on the Infinity are really not that impressive, although an upgrade to one of their better glass packages can improve the numbers substantially.
Marvin Infinity Windows Cost