Andersen 331 Narroline Sash Balance Unit Number_244GW4030 Andersen TW3032 (Upper Sash) White

Andersen TW3032 (Upper Sash) White Exterior and White Interior High Performance LowE4 Sun Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen TW2856C (Lower Sash) White Exterior and Natural Pine Interior High Performance LowE4 Sun Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen AR35 Perma-Shield Awning Screen - Stone Color

Andersen CR25 Casement Sash - High-Performance Low-E4 Glass - White Color

Andersen 2056C Narroline Double Hung Lower Sash White Exterior with Natural Interior Works with Andersen Narroline Double Hung 1968 to 2012

Andersen 331 Narroline Sash Balance Unit Number_244GW4030 Andersen TW3032 (Upper Sash) WhiteAndersen Perma Shield Narroline sash balancer 331. Sash balancers are metal boxes that contain a nylon cord under tension. The balancer number is a code for the tension and the cord length. The proper balancer must be used to maintain either the lower sash or the upper sash in an open position. If you replace one balancer you should replace both balancers.