Bob from SWISCO responded:
March 11, 2019
Thanks for posting. See either our S380-31 or S385-31 Channel Balances. The only difference between these two Series is the 'depth' of the bottom nylon shoe. With the Series 380 the depth of this nylon shoe is 1", whereas with the Series 385 it is 1-3/32". Compare with your own and see what is best. Once you know what balance to pick, you must select a stamp option. Your stamp code of 30 3 conforms to our stamp option of 3030, which is for a window sash in the weight range of 16 through 23 lbs. |
Bob from SWISCO responded:
March 12, 2019
Sounds like the S380-31 should work for you then! |