Andersen 100 Series Single Hung Sash Balancer Number 1720 Unit Number_2472 Works with Perma-Shield Improved/E-Z Awning

Works with Perma-Shield Improved/E-Z Awning Windows manufactured from 1999 to Present with Traditional style sill stop (refer 2nd picture)

Andersen TW28210 (Upper Sash) White Exterior and Natural Pine 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 3432 Narroline Double Hung Upper Sash White Exterior with Natural Interior Works with Andersen Narroline Double Hung 1968 to 2012

Andersen TW30310 (Lower Sash) Terratone Exterior and Natural Pine Interior High Performance LowE4 Tempered Glass - No Grille Grommets This Sash has no grille grommets

Andersen 100 Series Single Hung Sash Balancer Number 1720 Unit Number_2472 Works with Perma-Shield Improved/E-Z AwningAndersen 100 Series Sash Balance Number 1720 Works with Andersen 100 Series Single Hung Fibrex windows manufactured from 2008 to present. Every balancer has the number stamped on the edge please see in image gallery. We highly recommend replacing both balancers even if only one is not operating properly. These balancers allow free and easy vertical movement of the lower active single hung sash. To visibly see the balancer you need to remove the lower