Tilt window balance identifier

Quick Learner from USA
I need to replace my balances, can you help me with the size? I need 12 of them.
Thank You   
 
24-3/4"  Length 
3/8" Width    
 

The length not including the tip is:
 24-11/16"
The diameter of the plastic shaft is:
7/16"
 
I'm not able to weigh the window at this time but the tip is a white or beige color   
 
I don't think the S600 Series will work, I need a 3/8" rod this looks like it's 5/8"  
Yes, 5/8" won't fit in the slot also the window wieghs 16lbs.   

3 user uploaded images
3 Replies
Home Owner from USA
I'm thinking I need the S900, it has a 3/8" shaft. My rod measured 24-3/4" down to the plastic. Should I get 24 or 25" rod?
Casey
Casey from SWISCO
SWISCO
Expert

Hello,

Based on the specifications you've provided, the S900-25 spiral balance would be our best replacement option. You'll also need red tip options to support a sash between 7-21 pounds. Thank you! 

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