Replacement window sash balances

A handy person from Vero Beach, Florida says:
Need replacement window sash balances to match the following specs:

Please direct me to the part number to order.


John Beukers

Length - 19"
Track width 1/2"
Depth 9/16"
Top and bottom plastic inserts:winged (see images)
Identification: 29 4 HW CMC 7
Weight of window 18 lbs

User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting! Before I can offer an applicable replacement for this channel balance, I just need to know a bit more information about the bottom attachment. Please take a look at our 15-004 and 15-005 channel balance shoes, and note their depths. As you can see, they are 1-3/32" deep and 1" deep, respectively. Which one more closely matches your own bottom attachment?

Can you also confirm the length of your metal channel? Based on your stamp, I would think that the metal channel is in fact 30" long, not 19". Please double check and let me know!
A handy person from Vero Beach, FL says:
Thanks Tom,

Length is 30" and the bottom attachment is 1" deep
Profile picture of Tom
Tom from SWISCO responded:
Great! That sounds like the 15-005. In that case, take a look at our S380-30 channel balance with a 2940 option. Does that look about right? Does all the information match? Let me know what you think.
A handy person from Vero Beach, FL says:
Thank you Tom, correct part identified and Order placed
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)