Andersen 100 Series Single Hung Sash Balancer Number 2510 Unit Number_AXW45 Screen measures 60-27/32" wide by

Screen measures 60-27/32" wide by 20-5/32" high

Andersen TW21032 (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 TW38410 (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 TW38310 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Glass - No Grille Grommets This Sash has no grille grommets

Andersen TW3442 (Lower Sash) White Exterior and White Interior High Performance LowE4 Tempered Glass - No Grille Grommets This Sash has no grille grommets

Andersen 100 Series Single Hung Sash Balancer Number 2510 Unit Number_AXW45 Screen measures 60-27/32" wide byAndersen 100 Series Sash Balance Number 2510 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