Andersen Active Right Hand Panel White Exterior with Pine Interior High-Performance Low-E4 Tempered Glass Size 31611 Color:Pine Interior / White Exterior The 400 Series gliding window

The 400 Series gliding window was introduced in 1991 and is still in production today

Sash balancers are metal boxes that contain a nylon cord under tension

Andersen AXW55 Awning TruScene Screen - White Color

Andersen TW2862 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Tempered Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen Estate Style - Sash Lock and Keeper - Oil Rubbed Bronze Finish

Andersen Active Right Hand Panel White Exterior with Pine Interior High-Performance Low-E4 Tempered Glass Size 31611 Color:Pine Interior / White Exterior The 400 Series gliding window