OKNA Deluxe Eco-Pro Double-Hung Window – Low-E Argon Glass (35 ¾ x 44 ¼ x 4 ¼)

Description :
Premium OKNA Eco-Pro double-hung window featuring foam-filled vinyl framing and Low-E insulated glass with Argon gas for maximum energy performance. This high-efficiency model (NFRC-certified) includes a U-Factor of 0.26 and a Solar Heat Gain Coefficient of 0.29, ideal for reducing heating and cooling costs year-round. Designed with fusion-welded corners for strength, dual operating sashes for easy cleaning and ventilation, and a white exterior finish that suits both traditional and modern homes. The package includes installation instructions for both new construction and replacement applications.

Era
Contemporary (Energy-Efficient Design, 2010s–Present)

Style
Modern Residential / Energy Star Certified Fixture

Technique
Fusion-welded vinyl frame with Low-E double-pane insulated glass, Argon gas fill, and foam insulation for thermal stability. Factory-assembled with tilt-in sashes and weather-sealed compression locks.

Tools Used
Vinyl extruder, Argon gas filler, double-glazing press, precision cutting saw, and pneumatic sealer applicator.

History
OKNA Windows & Doors, established in Pennsylvania, is recognized for manufacturing high-efficiency residential windows that exceed Energy Star and NFRC performance benchmarks.

Manufacturer / Maker
OKNA Windows & Doors – Model: Eco-Pro Double-Hung, Series 600

Measurements
35 ¾" W x 44 ¼" H x 4 ¼" D

Suggested Weight
Approx. 45–50 lbs

Suggested Shipping Package Dimension
41" W x 50" H x 8" D

Item Number : P14884

Category : Double Hung Window

Brand : OKNA Windows & Doors – Model: Eco-Pro Double-Hung, Series 600