Replacement window tensioners

A handy person from Maine says:
November 14, 2023
Attached are the two pics of my window slide tensioners. The manufacturer of the window is ELL-1 and model is A-L-I Validator ( I believe). It is a series 100 SH/DW(716/717) Single Hung window.
I measured and it is 16.5 in long with a whit end. I don't see a 16.5 inch style on your site so was going to go with a 17 inch. It is not a large window so I don't need the springs for a heavy window.
Could you tell me which one you suggest to get as a replacement.
Thumbnail of the uploaded file named 20231113_123149.jpg
Thumbnail of the uploaded file named 20231113_123157.jpg
Profile picture of Casey
Casey from SWISCO responded:
November 15, 2023

Hello,

Unforutnately, we do not carry spiral balances in 1/2" lengths but either the S900-17 or S600-17 spiral balances should work for you depending on the diameter of your housing tube. Just make sure to replace the balances on both sides. Thank you! 

How to measure the tube width of a spiral balance.
How to measure the tube width of a spiral balance.
17" Series 600 Spiral Tilt Window Balance
17" Series 600 Spiral Tilt Window Balance
S600-17
$8.28
17" Series 900 Spiral Balance
17" Series 900 Spiral Balance
S900-17
$7.95
How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
VIDEO
WATCH >
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
VIDEO
WATCH >
How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
GUIDE
READ >
How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
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.