Bob from SWISCO responded:
March 15, 2019
Thanks for posting. Please confirm that your metal channel, not including the nylon attachments at either end, is 30". If so, please see either our S380-30 or S385-30. The only difference between these two balances 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 select, you'll need to choose a stamp option. Your stamp of 29C conforms to our stamp option of 2930, for a window sash in the weight range of 16 through 23 lbs. |