Casey from SWISCO responded:
May 27, 2009
Yes, 2850 stamp option is available at SWISCO.
2850 will carry a window sash weight range of 28 through 32 pounds. This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate. |