Emily from SWISCO responded:
February 7, 2022
Hi there! With this combination of attachments, you could have either an S380-30 or S385-30 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. If there is no stamp on your metal channel, you'll need to weigh your sash and choose a spring strength option on the chart under the product description on our website. There could be a few reasons as to why your balances are breaking through your top sash guides. Either your balances have too strong of a spring strength or your top sash guides need to be replaced. Comparison of the S380 and S385 balance shoes.
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Emily from SWISCO responded:
February 8, 2022
No problem! We'll be here if you need anything else! |