One side says 7.5 the other size 10.0

A quick learner from Maryland says:
March 15, 2024
One side says 7.5 the other size 10.0
Thumbnail of the uploaded file named Pivot stamp
Thumbnail of the uploaded file named Pivot
Thumbnail of the uploaded file named Coil
Profile picture of Casey
Casey from SWISCO responded:
March 18, 2024

Hello,

Your photos resemble the 15-251 Inverted Single Support. This system uses Series 160 Coil Balances sold separately. We do offer the S160-10 and S160-7 but note that the same coils should be used on both sides to ensure that the sash is evenly supported. I would recommend weighing your sash to confirm the correct strength options. Also, see the 16-032 Mounting Clips. Thank you! 

Measurements of 15-251
Measurements of 15-251

Dimensions for 16-032
Dimensions for 16-032
Inverted Universal Single Support
Inverted Universal Single Support
15-251
$3.97
Mounting Clip
Mounting Clip
16-032
$0.90
10 lbs Series 160 Coil Balance
10 lbs Series 160 Coil Balance
S160-10
$6.34
7.5 lbs Series 160 Coil Balance
7.5 lbs Series 160 Coil Balance
S160-07
$5.04
How to replace a window coil balance
How to replace a window coil balance
VIDEO
WATCH >
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
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.