Window balance

A home owner from Alpine, TX says:
The windows are ALENCO 1/2" insulated glass
Channel (only) dimensions are 28" and 22"
The 28"channel is marked (27c)
The 22"channel is marked (2120)
The sash dimensions are 33"Wx29"H and 21"Wx23"H
I included photos from your site to confirm identification
I would need 4 of each thanks
Thumbnail of the uploaded file named F464BB4D-7781-4A63-AD88-28920531D2EF.jpeg
Thumbnail of the uploaded file named 80F5A31E-3454-4CDD-9AB5-0190CFAAA160.jpeg
Thumbnail of the uploaded file named C9586BAE-9203-4D6D-B0FC-81BCC358DBB1.jpeg
Thumbnail of the uploaded file named 2D46F959-8648-488C-A5DE-67429B238192.png
Thumbnail of the uploaded file named 4154CD92-8D43-4955-B85D-7542D1F92427.png
Profile picture of Casey
Casey from SWISCO responded:

Hello,

I agree that you have either our S351 , with a 15-002 bottom attachment, or S390 , with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. 

You'll also need a 2730 spring strength option for your 28" replacement balances and 2120 options for the 22" balances. Thank you!

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.

A home owner from Alpine, TX says:
Thanks for all the help? The bottoms are definitely 1 1/8" so I assume I need to order 4 of the s390 with 2120 Spring Strength .? And 4 of the s390 with 2730 Spring Strength ??
Profile picture of Casey
Casey from SWISCO responded:

That would be correct. Please let us know if you have any other questions.

A home owner from Alpine, TX says:
Ok, how do I order 4 of each?
Thanks
Profile picture of Casey
Casey from SWISCO responded:

You can place an order directly on our website by clicking on the highlighted product codes on this page and adding them to your cart or you are welcome to give our customer service team a call at (888) 991-1929 for assistance.  

A home owner from Alpine, TX says:
Thank you so much Casey for all the help turns out all the clips at the top of the sash are gone. Also, I can't seem to find them on the website. Maybe these photos will help, thanks again
Thumbnail of the uploaded file named F5E04935-20FB-40F2-82F4-4090E0A4CAC6.jpeg
Thumbnail of the uploaded file named 33A97CFB-45E4-43A9-928A-67C00A3A2E83.jpeg
Thumbnail of the uploaded file named BFABF564-FFC2-40B6-81E6-D44CED214AA2.jpeg
Thumbnail of the uploaded file named A2EB34D1-34F5-4990-B3A8-A5F020928FCC.jpeg
Profile picture of Casey
Casey from SWISCO responded:

It's tough to make out accurate dimensions from photos but I would recommend starting by comparing the specifications of the 18-166 , 18-009 , and 18-127 top sash guides to yours. If you notice any discrepancies, please write-out your exact measurements and we can go from there.

How to Identify Replacement Channel Balances
How to Identify Replacement Channel Balances
VIDEO
WATCH >
How to Replace a Non-Tilt Channel Balance
How to Replace a Non-Tilt Channel Balance
VIDEO
WATCH >
How to Repair a Jammed Window
How to Repair a Jammed Window
VIDEO
WATCH >
How to Replace a Top Sash Guide [1080p]
How to Replace a Top Sash Guide [1080p]
VIDEO
WATCH >
How to replace a channel balance
How to replace a channel balance
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 4-7 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.