Double hung window
Material: Vinyl, Glass, High quality Hinge and Lock, Aluminum Track and Pulley
Glass: Double clear safety (Nitrogen-gas Filled, Low-E, French Green, Tinted, Clear Tempered, Frosted, Double Strength, Float, One-way Mirror For choice)
Colors: White (Green and Wood-aluminum for choice)
Easy to install and clean
High intensional lining steel (>1.5mm), Wind resistance capability is excellent
Durable, High tightness, no crack after long-time usage
Expect lifetime: 5-15years