Need replacements for windows

A home owner from 02852 says:
Photos show identification info on uppper & lower window frames
Thumbnail of the uploaded file named DSC08531.JPG
Thumbnail of the uploaded file named DSC08532.JPG
Thumbnail of the uploaded file named DSC08534.JPG
Thumbnail of the uploaded file named DSC08535.JPG
Profile picture of Casey
Casey from SWISCO responded:

Hello,

The pivot shoe shown in your photos looks like a match to the 15-177 shown below. This shoe is used with the Series 152 coil springs and related items listed on our product pages. Take a look at these parts, as well as the videos related on this page, to help you through the repair process. Thank you! 

Alternate image for 15-177
Alternate image for 15-177

A home owner from 02852 says:
My window weighs in at 8 pounds do i use 2 4 lbs or 2 8 lbs springs left & right
Profile picture of Casey
Casey from SWISCO responded:

You would need one S152-4 coil spring on each side to support an 8-pound sash. Just let us know if you have any other questions. 

How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
VIDEO
WATCH >
How to replace a window coil balance
How to replace a window coil balance
VIDEO
WATCH >
How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
WATCH >
Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
Removing a Triple Coil Window Balance
Removing a Triple Coil Window 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 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.