Andersen 100 Series Single Hung Sash Balancer Number 3130 Unit Number_244DH2840 Andersen TW18310 (Upper Sash) White

Andersen TW18310 (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 TW3042 (Lower Sash) White Exterior and White Interior High Performance LowE4 Sun Glass - No Grille Grommets This Sash has no grille grommets

Andersen 100 Series Sash Balance Number 3530 Works with Andersen 100 Series Single Hung Fibrex windows manufactured from 2008 to present

Andersen G336 Gliding Window Screen - White Color Works with Perma-Shield Gliding Windows manufactured from 1971 to 1992

Andersen 100 Series Single Hung Sash Balancer Number 3130 Unit Number_244DH2840 Andersen TW18310 (Upper Sash) WhiteAndersen 100 Series Sash Balance Number 3130 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