Block and tackle tilt window balance 28HD

A quick learner from Dayton, OH says:
I am needing to replace several of these of various sizes - still need to check and make a list of exactly which ones I need.
When I select 28" in your parts online website it gives me a part that is 27HD. Just wanting to make sure I get the right one. Also how do I make sure the shoe is the right size? Thank you.
Thumbnail of the uploaded file named C9241F04-69E2-4B65-8D26-BA217A0B9D94.jpeg
Thumbnail of the uploaded file named CAFB4433-F037-43DA-B8C9-BD6554781C4B.jpeg
Profile picture of Tom
Tom from SWISCO responded:

We can definitely help with this balance, but it has to be a custom order due to its configuration. There are just a few details we have to go over.

To start, can you confirm the length of the metal channel? With a stamp of 28HD, it should be 29" long, not 28".

Can you also look over our 15-197? I think this is the shoe you need but I would like you to give me confirmation.

Finally, how many balances altogether did you need? Our minimum purchase quantity for custom orders is 2.

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.