window balancer

Handy Person from WA
our window balancer for a milgaurd window is 36" long, and there are no model numbers stamped or marked on the old one
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Casey
Casey from SWISCO
SWISCO
Expert

Hello, thanks for posting! It looks like you could have either our Series 380 or Series 385. The difference between the Series 380 and the Series 385 lies in the depth of the shoe. Take a look at the picture below for more detail.

Comparison of the S378, S380 and S385 balance shoes.
Comparison of the S378, S380 and S385 balance shoes.

Since there are no stamps on your metal channel, you will need to weigh your window sash and consult the chart on the product page to determine the correct option.


Handy Person from WA
Can you confirm the party with this measurement please
1 user uploaded image
Casey
Casey from SWISCO
SWISCO
Expert

It looks to be the Series 385. Let me know if you have any further questions!

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