Thanks! Dthela@verizon.net
Couldn't tell right part from your picture

Contractor from Florida
Dec 26, 2024 11:51 am
3 user uploaded images
2 Replies

Bob from SWISCO
Dec 26, 2024 4:03 pm


Thanks for posting. This looks like either an S351-17 or S390-17 Channel Balance. The only difference between these two balances is the 'depth' of the bottom nylon shoe, or the heel-to-toe measurement. See the diagram below for reference. Measure your old shoe's depth to see what matches best.

Comparison of the S351 and S390 balance shoes.
For a stamp option, you likely can choose 1650, which designates a balance that can support a window in the weight range of 19 through 22 pounds. If you're uncertain, weigh your window sash to ensure it fits this range. let me know if you have further questions.
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