Casey from SWISCO responded:
February 3, 2011
Hi George,
Yes, the 2930 is the stamp option you should select for a 30" Series 350 non-tilt channel balance with stamp 293. S350-30 with Stamp Option 2930 will carry a window sash weight range of 16 through 23 pounds. This information is based on 2 balances per sash. Balances are designed assuming friction from the jamb weatherstrip will carry a portion of the sash weight. Suggested sash weights are approximate. |