The Okna 600 deluxe series comes standard with advanced Low Emissivity coatings, Argon gas, and a Foam Filled insulated frame and sash. The high performance glass used in the Okna 600 is designed specifically for the Northeast climate ensuring that your home in NJ gets the maximum benefit.
Double Hung: Eco-Pro
Okna windows and doors are manufactured from high quality materials and are backed by a Transferable Lifetime Limited Warranty.
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