Identify channel balance and top sash guide
Home Owner from Palm City, Florida
Oct 18, 2025 4:12 pm
I would like to identify the replacement window channel balance and top sash guide needed. The channel balance is 30", non-tilt window. The balance has 2930 stamped.
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5 Replies
Bob from SWISCO
Oct 20, 2025 4:41 am
Hello there. For the channel balance, start by comparing to either the S380-30 or S385-30. The only difference between these two balances is the depth of the bottom nylon shoe. See below. Measure your old balance's shoe depth to see what matches best. For a stamp option choose 2930.
Comparison of the S378, S380 and S385 balance shoes.
Bob from SWISCO
Oct 20, 2025 4:41 am
Hello there. For the channel balance, start by comparing to either the S380-30 or S385-30. The only difference between these two balances is the depth of the bottom nylon shoe. See below. Measure your old balance's shoe depth to see what matches best. For a stamp option choose 2930.
Detail of 18-161
Profile view of 18-161
Bob from SWISCO
Oct 21, 2025 4:08 pm
Sounds good! If it is 7/8" deep then the Series 378 does make the most sense. Let us know if you have further questions.
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