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.

28-6 Number stamped on your balance
29 Inch Length of Metal Hemmed channel balance
…
28-9 Number stamped on your balance
29 Inch Length of Metal Hemmed channel balance
Sash weight 35 To 38 lbs
Note: Top…
29-1 Number stamped on your balance
30 Inch Length of Metal Hemmed channel balance
Sash weight 6 To 12 lbs
Note: Top…
29-2 Number stamped on your balance
30 Inch Length of Metal Hemmed channel balance
Sash weight 12 To 17 lbs
Note: Top…
29-3 CMC stamped on non-tilt window balance. 30" Length of Metal Hemmed Channel Balance. 17 To 24 lbs Sash Weight.
Note: Top and bottom…
29-4 CMC stamped on non-tilt window balance. 30" Length of Metal Hemmed Channel Balance. 24 To 28 lbs Sash Weight.
Note: Top and bottom…
29-5 Number stamped on your balance
30 Inch Length of Metal Hemmed channel balance
Sash weight 28 To 32 lbs
Note: Top…
29-6 Number stamped on your balance
30 Inch Length of Metal Hemmed channel balance
Sash weight 32 To 35 lbs
Note: Top…
29-9 Number stamped on window balance
30 Inch Length of Metal Hemmed channel balance
Sash weight 35 To 38 lbs
Note: Top…
30-1 Number stamped on your balance
31 Inch Length of Metal Hemmed channel balance
Sash weight 6 To 12 lbs
Note: Top…
30-2 Number stamped on your balance
31 Inch Length of Metal Hemmed channel balance
Sash weight 12 To 17 lbs…
30-3 Number stamped on your balance
31 Inch Length of Metal Hemmed channel balance
Sash weight 17 To 23 lbs
Note: Top…
30-4 Number stamped on your balance
31 Inch Length of Metal Hemmed channel balance
Sash weight 23 To 28 lbs
Note: Top…
30-5 Number stamped on your balance
31 Inch Length of Metal Hemmed channel balance
Sash weight 28 To 33 lbs
Note: Top…
30-6 Number stamped on your balance
31 Inch Length of Metal Hemmed channel balance
Sash weight 33 To 35 lbs
Note: Top…
30-9 Number stamped on your balance
31 Inch Length of Metal Hemmed channel balance
Sash weight 35 To 38 lbs
Note: Top…
31-1 Number stamped on your balance
32 Inch Length of Metal Hemmed channel balance
Sash weight 6 To 12 lbs
Note: Top…
31-2 Number stamped on your balance
32 Inch Length of Metal Hemmed channel balance
Sash weight 12 To 16 lbs
Note: Top…
31-3 Number stamped on your balance
32 Inch Length of Metal Hemmed channel balance
Sash weight 16 To 23 lbs
Note: Top…
31-4 Stamped on non-tilt window balance.
32" Length of Metal Hemmed channel balance.
Sash Weight 23 To 28 lbs.
1/2" x 1/2" Non-tilt…
31-5 Number stamped on your balance
32 Inch Length of Metal Hemmed channel balance
Sash weight 28 To 32 lbs
Note: Top…
31-6 Number stamped on your balance
32 Inch Length of Metal Hemmed channel balance
Sash weight 32 To 35 lbs
Note: Top…
31-9 Number stamped on your balance
32 Inch Length of Metal Hemmed channel balance
Sash weight 35 To 38 lbs
Note: Top…
32-1 Number stamped on your balance
33 Inch Length of Metal Hemmed channel balance
Sash weight 7 To 13 lbs
Note: Top…
32-2 Number stamped on your balance
33 Inch Length of Metal Hemmed channel balance
Sash weight 13 To 19 lbs
Note: Top…
32-3 Number stamped on your balance
33 Inch Length of Metal Hemmed channel balance
Sash weight 19 To 23 lbs
Note: Top…
32-4 Number stamped on your balance
33 Inch Length of Metal Hemmed channel balance
Sash weight 23 To 29 lbs
Note: Top…
32-5 Number stamped on your balance
33 Inch Length of Metal Hemmed channel balance
Sash weight 29 To 32 lbs
Note: Top…
32-6 Number stamped on your balance
33 Inch Length of Metal Hemmed channel balance
Sash weight 32 To 34 lbs
Note: Top…
32-9 Number stamped on your balance
33 Inch Length of Metal Hemmed channel balance
Sash weight 34 To 38 lbs
Note: Top…
33-1 Number stamped on your balance
34 Inch Length of Metal Hemmed channel balance
Sash weight 8 To 13 lbs
Note: Top…
33-2 Number stamped on your balance
34 Inch Length of Metal Hemmed channel balance
Sash weight 13 To 18 lbs
Note: Top…
33-3 Number stamped on your balance
34 Inch Length of Metal Hemmed channel balance
Sash weight 18 To 24 lbs
Note: Top…
33-4 Number stamped on your balance
34 Inch Length of Metal Hemmed channel balance
Sash weight 24 To 29 lbs
Note: Top…
33-5 Number stamped on your balance
34 Inch Length of Metal Hemmed channel balance
Sash weight 29 To 32 lbs
Note: Top…
33-6 Number stamped on your balance
34 Inch Length of Metal Hemmed channel balance
Sash weight 32 To 35 lbs
Note: Top…
33-9 CMC Stamped on non-tilt window channel balance.
34 Inch Length of Metal Hemmed channel balance
Sash weight 35 To 38 lbs
Note:…
34-1 Number stamped on your balance
35 Inch Length of Metal Hemmed channel balance
Sash weight 8 To 13 lbs
Note: Top…
34-2 Number stamped on your balance
35 Inch Length of Metal Hemmed channel balance
Sash weight 13 To 18 lbs
Note: Top…
34-3 Number stamped on your balance
35 Inch Length of Metal Hemmed channel balance
Sash weight 18 To 24 lbs
Note: Top…