Window Balancers.

A home owner from Portsmouth. RI says:
Hello,

I have a double hung wind where the outside balancers have had the pulley to spring interface break. I originally looked up and ordered 770 x 27" based on the fact that the channel is not ribbed.

Now I see that the balancers I have are 751 but not ribbed.

Channels I have:
Markings: (10/06) Unique 26-D-40
length: 27"
Chanel width: 0.575"
Channel height: 0.525"

Take a look at the photos and let me know what I need. i will ship back the 770 x 27 I ordered, do I need a RMA from you?

Thanks
Alex
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for contacting us. We can custom make an S770-27 channel balance (27D stamp) with a 15-014 shoe attached. Would that work for you? If so, I have emailed you a custom ordering link for two of these custom balances. You should receive it shortly. This includes a price quote and will allow you to order the requested hardware. Let me know if you have any questions!
How to install a ribbed tilt channel balance with knife lock shoe
How to install a ribbed tilt channel balance with knife lock shoe
VIDEO
WATCH >
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
VIDEO
WATCH >
Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
GUIDE
READ >
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)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.