Andersen R1431/27 Narroline Sash Balance Unit Number_2062 Andersen 2456C Narroline Double Hung

Andersen 2456C Narroline Double Hung Lower Sash Sandtone Exterior with Sandtone Interior Works with Andersen Narroline Double Hung 1968 to 2012

Andersen 3852 Narroline Double Hung Upper Sash White Exterior with White Interior Works with Andersen Narroline Double Hung 1968 to 2012

viewed from the interior

Andersen A6 Awning TruScene Screen - Natural Wood Interior

Andersen TW34510 (Upper Sash) White Exterior and White Interior High Performance LowE4 Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen R1431/27 Narroline Sash Balance Unit Number_2062 Andersen 2456C Narroline Double HungAndersen Perma Shield Narroline sash balancer R1431 27. 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.