61 Series Caldwell Window Balances. CMC Window Balance replacements. 1/2" x 1/2" non-tilt channel balance. Similar to our 60 series but these balances have a hemmed edge.
How to find your part number?
1. Measure metal channel balance length. (Do not include plastic ends.)
2. Check number stamped on channel. (e.g. 20-2, 27-4, 30-5, etc.)
3. Select our corresponding part number from the chart here.
4. Click on corresponding product below to purchase. Top and bottom balance end brackets must be selected at time of ordering.
***If you DO NOT want ends attached, please add to customer comments at checkout.

44-3 Number stamped on your balance
45 Inch Length of Metal Hemmed channel balance
Sash weight 20 To 24 lbs
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44-4 Number stamped on your balance
45 Inch Length of Metal Hemmed channel balance
Sash weight 24 To 31 lbs
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44-9 Number stamped on your balance
45 Inch Length of Metal Hemmed channel balance
Sash weight 36 To 42 lbs
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45-4 Number stamped on your balance
46 Inch Length of Metal Hemmed channel balance
Sash weight 24 To 31 lbs
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45-5 Number stamped on your balance
46 Inch Length of Metal Hemmed channel balance
Sash weight 31 To 37 lbs
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45-9 Number stamped on your balance
46 Inch Length of Metal Hemmed channel balance
Sash weight 37 To 42 lbs
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46-4 Number stamped on your balance
47 Inch Length of Metal Hemmed channel balance
Sash weight 25 To 31 lbs
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46-9 Number stamped on your balance
47 Inch Length of Metal Hemmed channel balance
Sash weight 37 To 44 lbs
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47-3 Number stamped on your balance
48 Inch Length of Metal Hemmed channel balance
Sash weight 19 To 24 lbs
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47-9 Number stamped on your balance
48 Inch Length of Metal Hemmed channel balance
Sash weight 37 To 44 lbs
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48-5 Number stamped on your balance
49 Inch Length of Metal Hemmed channel balance
Sash weight 32 To 37 lbs
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48-9 Number stamped on your balance
49 Inch Length of Metal Hemmed channel balance
Sash weight 37 To 44 lbs
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50-4 Number stamped on your balance
51 Inch Length of Metal Hemmed channel balance
Sash weight 25 To 32 lbs
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50-9 CMC Number stamped on your balance.
51 Inch Length of Metal Hemmed channel balance.
Sash weight 37 To 44 lbs.
1/2" Non-tilt…
51-4 Number stamped on your balance
52 Inch Length of Metal Hemmed channel balance
Sash weight 24 To 32 lbs
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51-5 Number stamped on your balance
52 Inch Length of Metal Hemmed channel balance
Sash weight 32 To 37 lbs
Note: Top…