Andersen 100 Series Single Hung Sash Balancer Number 3070

Andersen 100 Series Sash Balance Number 3070 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 active sash. Note: Balancers have length and counter-balance information stamped on face. The first one or two digits identify the approximate length and the second two digits identify a weight range. One sash uses two balancers.